Today, scientists have added _________ to the Linnaean system: Prokaryotes (archaea and bacteria--no nucleus) and Eukaryotes (with a nucleus).
Answers
Answer:
Today, scientists have added two additional domains to the Linnaean system: Prokaryotes (archaea and bacteria--no nucleus) and Eukaryotes (organisms with a nucleus).
Explanation:
I think.
Related Questions
what was the purpose of this experiment? multiple choice to change the color of quail feathers over time to change the color of quail eggs over time to change size of quail eggs over time to change the size of quail over time to change mating behavior in quail over time\
Answers
The purpose of the experiment is not mentioned in the question, however, the options provided suggest that the experiment involves altering certain traits of quails over time. These traits include color of feathers and eggs, size of eggs and quails, and mating behavior.
Without additional information, it is difficult to determine the exact purpose of the experiment. However, it is possible that the experiment aims to study the effects of selective breeding on quails, or to determine the genetic basis of certain traits in quails. Alternatively, the experiment may be focused on studying the behavior of quails in response to certain stimuli or changes in their environment.
The purpose of the experiment was to study the changes in quail attributes over time. However, without specific context or details about the experiment, it is not possible to accurately determine which of the multiple-choice options is the correct one. If you could provide more information about the experiment, I would be happy to help you with a more precise answer.
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The hydrosphere refers to the total amount of water on Earth, including liquid, gas, and solid forms. Which is one way the
hydrosphere has been impacted by the movement of the continents over time?
Glaciers that once covered South Africa have melted and can no longer form.
All of the continents have fewer coastal areas than they did millions of years ago.
Land masses near the equator have more glaciers now than they did millions of years ago.
The poles that were once covered by glaciers are now surrounded by warm, tropical waters.
Answers
Answer:
The correct option is;
Glaciers that once covered South Africa have melted and can no longer form.
Explanation:
The Karoo Supergroup that formed hundres of millions of year ago covered the most part of South Africa. The Tillite debris from melting glaciers, in Dwyka Tillite are located at the bottom layers of the Karoo Supergroup, which is an indication that millions of years ago, South Africa was under extensive glacier coverage formed during the movement of the continent past the South Pole
The eventual arrival of the continent to temperate regions away from the South Pole resulted in the melting of the glaciers from which a huge swamp was formed.
Answer:
A
Explanation:
Each substance has a unique set of properties that depends on the kinds of atoms it has and how are connected
Answers
Each substance has a unique set of properties that are determined by the types of atoms it contains and how they are arranged. Atoms are the basic building blocks of matter and there are over 100 different types of atoms, each with its own distinct properties.
When these atoms combine to form molecules, they create substances with new and unique properties. For example, water is made up of two hydrogen atoms and one oxygen atom. This unique combination of atoms gives water its characteristic properties, such as being a liquid at room temperature and having a high boiling point. Similarly, carbon dioxide is made up of one carbon atom and two oxygen atoms, which gives it its ability to extinguish fires and its fizzy quality in carbonated drinks. So, the types of atoms and their arrangement play a crucial role in determining the properties of each substance.
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Why might a cancer cell show a preference for glycolysis, even in the presence of oxygen?
Answers
Cancer cells may exhibit a preference for glycolysis even in the presence of oxygen because glycolysis is a more efficient and expedient approach to energy production.
They must divide rapidly and may lack the infrastructure for energy metabolism that is common in healthy cells. They undergo rapid cell division and require additional resources to survive, which glycolysis can supply because it generates energy and supplies the intermediates required for biomass synthesis.
These cells may undergo a metabolic shift known as the Warburg effect, which means that they generate energy via glycolysis even in the presence of oxygen. Glycolysis is an anaerobic metabolic process that generates energy without using oxygen by breaking down glucose into two molecules of pyruvate, which are then metabolized to produce ATP and reducing equivalents such as NADH.
Cancer cells can generate ATP more quickly than they would if they relied solely on the mitochondria's oxidative phosphorylation. This approach allows them to produce more ATP rapidly to meet their energy needs and keep up with their rapid proliferation.
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DNA and RNA both use the same types of nucleotides
Answers
Answer:
No
Explanation:
In the nucleotide of DNA and RNA only Phosphate that is similar to both nucleic acid, They have different sugar portion and Nitrogenous base.
DNA nucleotide include
- Phosphate
- deoxyribose sugar
- NB Adenine, Thymine, Guanine and Cytosine
RNA nucleotide include
- Phosphate
- Ribose sugar
- NB Adenine, Uracil, Guanine and Cytosine
Therefore They do not use the same types of nucleotides because DNA has 2 strand that are joined together by weak hygrogen bond and it is long. while RNA has 1 strand and it is a short thus not coiled or helical.
Structure of plant cell
Answers
Answer:
A cell wall, a broad central vacuole, and plastids such as chloroplasts are all present in plant cells. The cell wall is a dense layer that covers the cell and provides structural support and protection. It is located outside the cell membrane. The turgor pressure against the cell wall is maintained by the central vacuole.
Explanation:
39. The process by which light is trapped and converted to chemical energy iscalledA. cellular respiration.B. photosynthesis.C. the Calvin cycle.
Answers
Photosynthesis is the process by which plants trap light energy through their pigments and together with carbon dioxide and water generate a carbohydrate (chemical energy).
That is, photosynthesis is the process in which light energy is converted into chemical energy in the form of sugars.
we can conclude that the correct answer is:
Answer:B. photosynthesis.
16 - Albinism: From Genotype to Phenotype Going through the motions...Genotypes to Phenotypes In this activity, you will observe a normal gene and compare it to three (3) mutated sequences. By transcribing and translating cach gene sequence, you will determine both where the mutation is located and what type of mutation has occurred. Finally, you will determine how the gene was changed and how it affected the person's phenotype. Procedure: 1) Each student will analyse one of four genes on the back of this sheet: TYR, OCA2, TYRP-1, or SLCASA2 Each student will have a different gene and be responsible for reporting their findings to the other group members 2) Fach form has an original DNA strand and 3 different mutated strandt. For cach, you will transcribe the mRNA sequence and then translate the mRNA into the amino acid sequence (AA). 3) With a colored pencil, you will then do the following . First, circle the mutation() on cach of the three mutared strands that differ from the original DNA strand at the top of your form. (Note: not all sequences start at beginning of gene.) . Second, lightly shade over cach codon that differs in the mRNA strand from the original mRNA strand at the top of your form • Lastly, lightly shade over each amino acid that differs in the amino acid sequence from the original amino acid sequence at the top of your form . Using the amino acid sequences match one of them to the "Individual" cards at your table to view phenotype. Once your analysis is complete, fill out the table below. Analysis: Making sense of your date Your gener Individuale Original DNA Strand Gene: TYR (OCA1) Name: Victoria Cell Gene affected Mutation Mutation 1 Mutation 2 Mutation 3 Mutation Type Cite your evidence here for mutation type Point Com AiN One codon was erected vi bine amino aciddathram Which of the above mutations caused a change in the phenotype? How did this change occur? Which mutation did not result in a change in the phenotype? 153 Zoo Genetics Key Aspects of Conservation Biology 154 Original DNA Strand Gene: TYR (OCA1) Name: DNA: TACGAGGACCGACAAAACATGACGGACGACACCTCAAAGGTCTGGAGGCGACCGGTAAAG mRNA: AUG CUCGT GU GUG VAC VOLG OG UGG AGU WC 016 Acc lucc Gcu 66 ya AAS: Met Lev Lev Ala Val Lev Terser Lev Lev Trp ser Phe bin. The ser Ala Gly His Phel Mutation 1 DNA: TACGAGGACCGACAAAACATGACGACGACACCTCAAAGGTCTGGAGGCGACCGGTAAAGG mRNA: AUG CUCING GOU GUU WG WAC UGCVGUGU GA GUNLU ALA CU GLUGGANU V AAS: Met Lev ev Ala Vall Lev Torsers us by Val ser Ang Pro Pro Lev Ala lhe ser Mutation 2 DNA: TACGAGGACCGACAAAACATGACGGACGACACCTCAAAGGTCTGGAGGCGACCGGTTAAG mRNA: AGUNG GOUGOU WG VALUGU GUGUGO AGO W LAGAO ULL LOGU UW AAs: Met Lev Lev Ala Val Lev Torser Lev Lev Tre ser the Gin Thy sev nia Gry Gin Phel Zoo Genetics:Key Aspects of Conservation Biology Mutation 3 DNA: TACGAGAACCGACAAAACATGACGGACGACACCTCAAAGGTCTGGAGGCGACCGGTAAAG mRNA: AG CUCUG GU GU UGLALUGU LUG CUL UDGAU CUGAC VEL 6 GC G AAS: Met Lev Lev Ala Val Lev Torser hev Lev Trp Ser the inhhr ser Ala Gly His Phe
Answers
The phenotype is affected by mutations 1 and 2 because in the first, the complete protein is altered, and in the second, the new amino acid may cause the protein to have altered or no function.
What is Mutation?
Mutations can happen naturally or as a result of UV rays, congenital conditions, ionic radiations, or specific free radicals.
Even with the point mutation, there is no alteration to the amino acid sequence, hence the protein will not be affected.
In mutation 1, a new nucleotide is added at codon 9, changing the whole sequence of amino acids and codons in the process, mutation frameshift.
Because a new codon was created as a result of the substitution of one nucleotide by another in mutation 2, produced a new amino acid, so Point mutation.
Therefore, in mutation 3, one nucleotide is swapped out for another, and the resulting codon codes the same amino acid as the one before it, so point mutation.
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What structural feature does glucose share with larger organic molecules, including dna and proteins?.
Answers
Glucose forms the backbone structure with large organic molecules including DNA and proteins.
What is the use of glucose?
Very low blood sugar (hypoglycemia) is treated with glucose, most frequently in persons with diabetes mellitus. The way that glucose works is by rapidly raising the level of glucose in your blood. Another purpose for glucose is to give someone who is unable to eat due to illness, trauma, or another medical condition carbohydrate calories.
The structural structure of nucleic acids, including DNA and RNA, is composed of the sugar-phosphate backbone. This molecule's directionality is determined by this backbone, which is made up of alternating sugar and phosphate groups.
Nucleotides make up DNA and RNA, and they are connected to one another in a chain via chemical interactions between their neighboring nucleotides' phosphate groups and sugar bases, known as ester bonds. Each nucleotide has a sugar at its 3' end and a phosphate at its 5' end. A free hydroxyl group on the 3' carbon of the following nucleotide forms an ester link with the phosphate group connected to the 5' carbon of the sugar on the first nucleotide. produced by two oppositely running linear sugar-phosphate backbones
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ascomycetes reproduce asexually by producing enormous numbers of asexual spores called ___.
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Ascomycetes reproduce asexually by producing enormous numbers of asexual spores called conidia. Ascomycetes are a group of fungi that undergo both sexual and asexual reproduction.
When it comes to asexual reproduction, they produce vast quantities of asexual spores known as conidia. These conidia are formed within specialized structures called conidiophores, which are typically found on the surface of the fungal colony or fruiting body. The conidiophores develop chains or clusters of conidia at their tips, which are then released into the environment.
The production of large numbers of conidia allows ascomycetes to disperse their genetic material widely and increase the chances of survival and successful colonization in various habitats. Conidia are typically lightweight and may possess structures like wings or appendages that aid in dispersal by wind or other means, ensuring the fungi can reach new locations suitable for growth. This asexual reproductive strategy provides ascomycetes with a mechanism for rapid propagation and colonization, especially in favorable conditions or when the availability of a compatible mating partner for sexual reproduction is limited.
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Migraines in a postmenopausal woman on estrogen therapy - wyd?
Answers
Headaches could result from the decline in oestrogen right before your menstruation. Numerous migraine sufferers claim that they experience migraines prior to or during menstruation.
For migraines brought on by hormonal changes, you can use tried-and-true therapies.
Postmenopausal women have been researched to learn more about the effects of oestrogen and the usage of HRT on migraines because menopause is a natural condition of oestrogen shortage.
Menopause brings about hormonal changes, and these changes can have a significant impact on the frequency and intensity of migraine attacks. Hormonal changes, especially a decrease in oestrogen levels, may cause migraine attacks in those who menstruate and experience migraines.
The female hormone oestrogen has been connected to headaches, particularly migraine headaches.
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what role do trees play in the forest
Answers
Answer:
Trees play the part of taking in the carbon dioxide that we breathe out and changing it into oxygen so we can breathe it, they alos provide homes for different types of animals.
Hope this helps!
BRAINLIEST: A satellite was in two separate crashes. In both crashes, the satellite had the same mass. Engineers want to know about the speed and direction of the satellite after the crashes. Why would the crash affect the motion of the satellite, and which crash caused a greater change in motion for the satellite?
Answers
Answer:
Crashing into the asteroid would cause the satellite to slow down, stop, or reverse direction, because it is a force in the opposite direction to the satellite's motion. Whichever crash was a stronger force would cause it to change motion more. It takes a stronger force to change the velocity of a more massive object.
Explanation:
Big change occur in the motion of the satellite when it is hit by a big and heavy object.
The crash greatly affected the motion of the satellite because the other object comes to the satellite in opposite direction which slower down the speed and sometimes also reverse the motion of the satellite.
That crash will bring great change in the motion of the satellite which is hit by a big and heavy object whereas if the object is small than it only slow down the speed of the satellite so we can conclude that the interaction with greater object will greatly affected the motion of the satellite.
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The ability to use old cells is an advantage of _____.hybridization DNA testingrestriction fragment length polymorphism (RFLP) polymerase chain reaction (PCR) all DNA testing procedures
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The ability to use old cells is an advantage of all DNA testing procedures.
These are normal memories that you're currently not thinking about.
Answers
hope it helps you plz mark me brilliantest
Answer:
Trouble with total recall can come from many physical and mental conditions not related to aging, like dehydration, infections, and stress. Other causes include medications, substance abuse, poor nutrition, depression, anxiety, and thyroid imbalance.
Hi can someone please help me with this!!
Answers
Section A;
Hypothesis - If birds seed A is used then more cardinals are attracted.
Prediction - Bird seed A attracts cardinals the most
Section B;
Hypothesis - If a chemical spray is used, then the number of mosquitoes decreases
Prediction - Chemical sprays are the most effective mosquito repellants
Section C;
Hypothesis - If snickers candy is used, then kids are happiest
Prediction - Snickers candy makes kids happiest
What is an experiment?An experiment is an interlay of variables- the independent variable and the dependent variable. The independent variable is the variable that we have to manipulate in the experiment while the dependent variable is the variable that changes as we change the independent variable.
Let us now try to write the hypothesis in each case;
Section A;
Hypothesis - If birds seed A is used then more cardinals are attracted.
Prediction - Bird seed A attracts cardinals the most
Section B;
Hypothesis - If a chemical spray is used, then the number of mosquitoes decreases
Prediction - Chemical sprays are the most effective mosquito repellants
Section C;
Hypothesis - If snickers candy is used, then kids are happiest
Prediction - Snickers candy makes kids happiest
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The Tasty Beef Processing Plants are located in Alabama. There are 10 locations and both the slaughterhouse and processing plants are located on-site. Production for each plant is 12 million pounds per year. Each plant has 50 meat grinders. The product is provided to 3,000 customers at 10,000 locations. One of the key risks is E. Coli contamination. What is the objective of this audit? Group of answer choices
To maximize revenue and operating efficiencies.
To ensure employee safety.
To ensure controls are in place and working effectively to prevent beef tainted with E. Coli.
To optimize the production process.
Answers
The objective of this audit is to ensure controls are in place and working effectively to prevent beef tainted with E. Coli. Therefore option 3 is correct.
This means the main focus of the audit is on food safety and ensuring that the processing plants are implementing appropriate measures to prevent E. Coli contamination in the beef products they produce.
The audit will assess the effectiveness of controls, such as sanitation practices, employee training, quality assurance procedures, and monitoring systems, to ensure that the risk of E. Coli contamination is minimized and that the beef products meet safety standards.
While other objectives like maximizing revenue, employee safety, and optimizing the production process are important, the primary objective of this audit specifically relates to E. Coli contamination prevention and food safety.
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Several Archaea have a lipid monolayer instead of a lipid bilayer comprising their cytoplasmic membrane. Why could this be an advantage?
This type of structure is permeable to protons.
This type of structure offers considerable protection against osmotic pressure.
This type of chemical lipid structure is more stable at very high temperatures.
Carbohydrates can easily diffuse across this structure to provide nutrients for the cell.
Proteins are able to integrate more easily into this type of structure.
Answers
Several Archaea have a lipid monolayer instead of a lipid bilayer comprising their cytoplasmic membrane. This could be an advantage because this type of chemical lipid structure is more stable at very high temperatures.What is Archaea?Archaea are single-celled microorganisms.
They have prokaryotic cells, meaning that they lack a nucleus. Archaea were initially classified as bacteria, but they are actually distinct from bacteria and eukaryotes. Archaea are mostly found in extreme environments, such as hot springs, where they were first discovered.What is a lipid monolayer?A lipid monolayer is a type of cell membrane in which the lipids are arranged in a single layer, rather than the typical bilayer. Several Archaea have a lipid monolayer instead of a lipid bilayer comprising their cytoplasmic membrane.
The reason why this could be an advantage is that this type of chemical lipid structure is more stable at very high temperatures. This makes it ideal for organisms living in extreme environments, such as hot springs. Additionally, proteins are able to integrate more easily into this type of structure. However, this type of structure is not permeable to protons. Carbohydrates cannot easily diffuse across this structure to provide nutrients for the cell. Nonetheless, the advantages of a lipid monolayer outweigh the disadvantages.
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PLEASE HELP WILL GIVE BRAINLIEST
What is the source of bacteria which cause illness?
Question 2 options:
Rocks
Other bacteria
Soil
Miasma
Answers
Answer:
Other bacteria can BUT miasma causes a lot.
Explanation:
miasma causes illnesses like the cold, malaria, influenza etc...!
Hope this helped <3
Under what conditions might you expect to find living growing cells? There is more than one correct choice, select all that apply to receive credit. A. In seawater at a temperature of -1 degrees B. At temperatures of more than 150 degrees C. At a a pH of 2.0 D. In a brine composed of 20% NaCl. E. A temperature of 115 degrees c at a deep sea hydrothermal vent. F. In the absence of oxygen. G. In the absence of water.
Answers
Living, growing cells can exist under specific conditions that provide them with suitable environments to survive and reproduce. There are several conditions where we might expect to find living growing cells, and some of them are:
A temperature of 115 degrees C at a deep-sea hydrothermal ventThe hydrothermal vents are the extreme environments that support a unique and diverse community of living organisms. These vents release hot water, gases, and minerals, which provide the necessary nutrients and energy for the organisms to survive. The organisms that thrive in this environment have adapted to high temperatures and pressures, and some of them can even tolerate acidic and toxic conditions.It is essential to note that the other options are incorrect because they are not suitable conditions for living, growing cells. For instance, seawater at a temperature of -1 degrees is too cold, while temperatures above 150 degrees Celsius are too hot for most organisms to survive. Similarly, a pH of 2.0 is too acidic for most organisms to survive, while a brine composed of 20% NaCl is too salty for most organisms to survive. Finally, living, growing cells cannot exist without water since water is essential for life processes such as metabolism, growth, and reproduction.In conclusion, living, growing cells require specific conditions to thrive, and these conditions can range from extreme environments like hydrothermal vents to anaerobic environments that lack oxygen. Understanding the conditions that support life can help scientists in the search for life on other planets and advance our understanding of the origins and evolution of life on Earth.To learn more about : Environment
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Can anyone please help meee
Answers
Give an example of seedless vascular plants.
Answers
Explanation; they have the same tissue to move food and water through their stems and foliage, but they don't produce flowers or seeds
Seedless vascular plants include club mosses, horsetails, ferns, and whisk ferns.
What are Seedless vascular plants?Seedless Vascular Plants are those vascular plants or tracheophytes all produce seeds during their reproductive phase except those belonging to phylum Pteridophyta, where pteridophytes include ferns and horsetails, do not produce seeds. Hence they are seedless vascular plants.
Seedless vascular plants fall under the category of tracheophytes which have vascular tissues such as xylem and phloem, but do not produce seeds or flowers for propagation. Examples of seedless vascular plants include ferns, clubmoss, whisk fern, and horsetail.
Thus, Seedless vascular plants include club mosses, horsetails, ferns, and whisk ferns.
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Q3. How could they have implemented the changes better so that the strike may have been averted?
Answers
To better implement changes and avert a strike, several key steps could have been taken. Firstly, enhancing communication and engagement between management and employees is crucial.
This involves actively involving employees in decision-making processes and providing platforms for their concerns and suggestions to be heard and addressed. Secondly, adopting a proactive approach to conflict resolution is essential. Identifying potential issues early on and addressing them through mediation or negotiation can help prevent conflicts from escalating to the point of a strike.
Lastly, ensuring transparent and timely information sharing is vital. Keeping employees informed about changes, challenges, and the reasons behind decisions can help build trust and minimize misunderstandings that could lead to a strike.
Therefore, by implementing these measures effectively, the likelihood of a strike can be significantly reduced.
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can someone help brainliest
Answers
Answer: 1. founder effect
2. evolution
3. natural selection
4. species
5. geographically isolated
Explanation: Good luck! :D
If an egg that contains 24 chromosomes instead of 23 chromosomes is fertilized by a normal sperm, the result is
Answers
Answer:
However, in this question, the egg cell has 24 chromosomes instead of 23. This extra chromosome is often due to an error in meiosis, the type of cell division that makes gametes. So, after fertilization of an ovum with 24 chromosomes with a sperm cell with 23 chromosomes, a zygote with 47 chromosomes is the result
A scientist is comparing the outer layer of an onion cell to the outer layer of a human skin cell. What is unique about the outer layer of the onion cell compared to the skin cell?A scientist is comparing the outer layer of an onion cell to the outer layer of a human skin cell. What is unique about the outer layer of the onion cell compared to the skin cell?
Answers
An onion cell's outer layer and the outer layer of a human skin cell are being contrasted by a scientist. It has cellulose in it which distinguishes the onion cell's outer layer from the skin cell.
What is the outer layer of an onion cell?A plant cell called an onion cell has a cell wall and a large vacuole. The human cheek cell, on the other hand, is an animal cell with a large nucleus.
Human cheek cells are spherical, whereas onion cells have a brick-like form. Both a cell wall and a sizable vacuole are absent from human cheek cells.
Therefore, cellulose is unique in the outer layer of the onion cell.
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molecules present on the surface of cells of our skin can be studied by light microscope,TEM,SEM
Answers
Answer:
TEM
Explanation:
why was it important that mendel saw 3:1 ratios for multiple traits as opposed to only seeing it for flower color?
Answers
There is an emphasis on 3:1 ratios when learning genetics because they represent an important case by illustrating the impact of dominant-recessive relationships between alleles on mating outcomes.
The F2 generation produced a 3:1 ratio where the dominant trait is present three times as compared to the recessive trait. Mendel used two terms to describe the relationship of the two phenotypes based on F1 and F2 phenotypes. The hereditary determinants are of specific nature. In 3:1 ratios , there are three progeny with the dominant phenotype for every one with the recessive phenotype
This implies that three offspring will have a dominant phenotype and there is one offspring that will have a recessive genotype, that is the recessive phenotype. Hence, the overall ratio of dominant to recessive phenotypes is 3:1.
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The human population has experienced unchecked growth for the past 200 years. What does unchecked mean?
A.slow
B.At a steady rate
C.unrestrained
D.dangerous
Quick it is timed
Answers
Answer:
D
Explanation:
im pretty sure
Answer:
the answer is B
Explanation:
I took the test
the condition in which an individual inherits only one copy of a chromosome is called
Answers
The condition in which an individual inherits only one copy of a chromosome is known as monosomy.
It occurs when a chromosome is lost during cell division, resulting in the loss of all the genes on that chromosome. Monosomy is a rare genetic disorder that can result in various health problems, depending on which chromosome is affected.
Some examples of monosomy disorders include Turner syndrome, which is caused by the loss of an X chromosome in females, and Cri-du-chat syndrome, which is caused by the loss of a small piece of chromosome 5.
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