how can you prove whether a trait is acquired through genetics or the environment?
Answers
Answer:
some people look like their parents or relatives and that's because of genes
As for the environment, we adapt to live in places that were different from the other environment
Explanation:
Example for the environment: winter foxes weren't always white. they change colors to match their environment to serve. change happens generation after generations change to fit their environment
By conducting twin studies, adoption studies, or using animal models to separate genetic and environmental influences on the trait.
Researchers employ twin, adoption, and animal models to evaluate if a feature is inherited or environmental. Twin studies compare identical (100%) and fraternal (50%) twins for a certain attribute. Identical twins are more similar than fraternal twins, suggesting a stronger genetic effect.
Adoption studies compare biological and adoptive households. If the adopted person and their biological family share a characteristic, genetics are involved. If the attribute is more comparable between the adopted person and their adoptive family, it suggests environmental impact.
Researchers can explore inheritance patterns by carefully breeding animals with specified features. Scientists can determine how genetics and environment affect a characteristic by combining these strategies.
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Related Questions
HELP PLEASE ASAP IM REALLY BAD AT SCIENCE
Answers
Answer:
2. All light does share the same wavelength.
3. I would say mostly red and orange(two last one).
Which of the following is not a possible effect of rising carbon dioxide levels on plants? a. increased photosynthesis b. increased plant mortality c. increased crop productivity d. increased plant growth Please select the best answer from the choices provided
Answers
Answer:
option D
Explanation:
how the plant growth will be enhanced, so it seems incorrect.
Answer: D on edg
Explanation:
crossing over of chromosomes during meiosis shuffles parental chromosomes, resulting in a genetically unique child.
Answers
The crossing over of chromosomes during meiosis shuffles the genetic material between homologous chromosomes. This process leads to the creation of genetically unique combinations of genes in the resulting gametes. When these gametes combine during fertilization, they contribute to the genetic diversity of the offspring.
Meiosis is a process of cell division that occurs in sexually reproducing organisms. It involves two rounds of division, known as meiosis I and meiosis II. Meiosis is responsible for the production of gametes (eggs and sperm) and is crucial for genetic diversity.
During meiosis, crossing over of chromosomes takes place in a specific phase called prophase I. In this phase, homologous chromosomes pair up and exchange segments of genetic material. This exchange occurs at points called chiasmata, which are formed by the physical connection between non-sister chromatids of homologous chromosomes.
So, to summarize, crossing over of chromosomes during meiosis shuffles parental chromosomes, resulting in a genetically unique child.
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Which process do ALL living things do? *
Ophotosynthesis
O cellular respiration
O ventilation
O absorb sunlight
Omake glucose
Answers
Photosynthesis -is a process in which plants use to make their food by the help of sunlight
Cellular respiration- means the break down of simple sugars into CO2 and H2O and release energy in the form of ATP . so it takes place in all living things ,in plants and also in animals.
ventilation -means breathing in other word so every living thing doesn't live without breathing .
Absorb sunlight - it is done by plants to make their own food.
Make glucose-plants and animals both use glucose as their main source of energy. The main source of glucose in animals include the diet and process of gluconeogenesis and the primary source in a plants is the process of photosynthesis .
So,cellular respiration , ventilation and make glucose is done by all living things
I NEED HELP ASAP CAN SOMEBODY HELP ME PLZ
Which statement best represents the role of the cell membrane in this case?
A. The cell membrane acts as a highly selective barrier only allowing certain particles to pass through
B. The cell membrane passively transports molecules from low to high concentrations.
C. The cell membrane actively transports molecules into and out of the cell without using energy
D. The cell membrane acts as a semi-permeable barrier allowing the passage of larger molecules.
Answers
Answer:
B. The cell membrane passively transports molecules from low to high concentrations.
A phospholipid bilayer with integrated proteins forms the cell membrane.
What is the function of the cell membrane?A cell membrane's primary function is to protect the cell from its surroundings. It regulates the movement of substances across the cell membrane by being selectively permeable to ions and other organic molecules.Thus, we can conclude that option B, The cell membrane passively transports molecules from low to high concentrations is a correct statement.
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What element do all organic compounds contain? Carbon Hydrogen Nitogen Oxygen
Answers
Answer: Nucleic Acids
Explanation: it has Carbon, hydrogen, oxygen, nitrogen, phosphorus
The adaptations of a pelican include its long, pouch-like beak. Why is the beak of the pelican an example of an adaptation?
A.
The beak is a unique feature that is found only in pelicans.
B.
All birds have beaks, but the beaks vary among different species.
C.
The shape and structure of the beak have remained the same over many generations.
D.
The shape and structure of the beak are inherited and help the pelican survive in its environment
Answers
Answer:
D. The shape and structure of the beak are inherited and help the pelican survive in its environment
Explanation:
Hope this helps!
Only animals have prokartyotic cells:
True
False
Answers
Plants, animals, and fungi all have pro cells
Answer:
The answer is neither True nor False .Because:
The organisms which are prokaryotes(have prokaryotic cell) are only Kingdom Monera i.e Bacteria and blue green algae and all the remains i.e plants,animals,fungis,protists have eukaryotic cells.
Examine the DNA sequence in the image.
One DNA strand with two repeats of the code AATC is highlighted.
© 2014 NHS National Genetics and Genomics Education Centre
Creative Commons, by Attribution 2.0 Generic
Which of the following analysis tools is represented by the DNA sequence in the image?
DNA cloning
STR analysis
SNP profiling
Electrophoresis
Answers
In the image, the form of DNA sequence that is highlighted therein is C. SNP profiling.
What is SNP profiling?SNP profiling is a way of categorizing the genetic variations of a single nucleotide. In the diagram, we can see a DNA strand and the nucleotides that make it up.
Also, we can see how these nucleotides are categorized by their genetic variations. So, the term that represents the image in the figure is SNP profiling.
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SOMEONE HELP I HAVE 51 ASSIGMENTS DOU BY WEDNES
How do mutations occur in the genetic code? This represents crossing over during meiosis.
a) During DNA replication, the original DNA strand GTC ACA GGC ATC is copied into complementary strand CAG CCG TAG. This is an example of deletion.
b)Mutations can only occur when passed on thorough reproduction. The majority of mutations are the result of exposure to mutagens.
c)A woman who has sickle cell anemia passes this disease on to her offspring. This means that the mutation for sickle cell anemia MUST occur in the woman’s gametes.
d)Mutations can be silent and not affect the organism that has them.
Answers
Answer:
ILLL HELP YOU MARK ME BRAINLIEST AND START SHOWING ME THE QUESTIONS!!!
Explanation:
OKAY!!!!
Fungi include which living organisms?
Answers
Answer:
Yeasts and molds.
Explanation:
Hope it's helpful to you
which of these statements is shown by the photo?
A. the southern hemisphere is in summer and the northern hemisphere is in the winter.
B. Both polar regions are experiencing day and nighttime hours of relatively equal length
C. The southern hemisphere is closer to the sun than the northern hemisphere.
Answers
Answer:a
Explanation:
The water at the top of a waterfall has
energy.
Answers
RNA and DNA are both examples of _____ made from nucleic acids.
A. Atoms
B. Molecules
C. Lipids
Answers
Answer:
Molecules
Explanation:
Is this right
Answer:
b. molecules
Explanation:
All the different organisms interacting in a pond make up
A community
A population
The water cycle
The habitat
Answers
Answer: clean evironment
Explanation:
Answer:
they would make up a population
Explanation:
A bunch of creatures combined in the pool made the, population in the pool.
true or false?: as indicated by the km, hexokinase has a greater affinity for glucose than fructose.
Answers
As indicated by the Km, hexokinase has a greater affinity for glucose than fructose. This statement is True. Hexokinase is an enzyme that has a greater affinity for glucose than fructose. It binds more readily to glucose molecules than it does to fructose molecules.
This is because the shape of the glucose molecules is a better fit for the hexokinase enzyme than the shape of the fructose moleculesThe Michaelis-Menten equation demonstrates the kinetics of enzyme-catalyzed reactions. Enzyme affinity is defined as the tightness of an enzyme-substrate complex. The Michaelis constant is a measure of enzyme affinity for its substrate. The Michaelis constant (Km) is the substrate concentration at which the enzyme-catalyzed rate of the reaction is equal to half of the Vmax (maximal rate of the reaction).
The Km is inversely related to the enzyme-substrate affinity (ES). The lower the Km, the higher the affinity for the enzyme-substrate. Therefore, hexokinase has a greater affinity for glucose than fructose, as indicated by the Km.
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2. Would you be able to get energy from food if there weren’t chemical reactions in your body?
Answers
Answer:
no
Explanation:
we would not get any energy from food because nothing would happen (no chemical reaction)
Answer:
if we eat food we get energy, but if there weren't chemical reaction in your body nothing happens.
Explanation:
write down the distinguish chracteristics
of five kingdom classification
Answers
Answer:
Monera, Protista, Fungi, Plantae and Animalia. The organisms which are placed under the kingdom Animalia are heterotrophic and depend on the other organisms for food .
Explanation:
hope this helps :)
Which of the following is NOT a function of the lens in the eye?
pls pst
Answers
Which of the following statements best represents how structure relates to function? A predatory snake is able to see birds with violet feathers better than birds with green feathers. Some insects are able to live longer than others. A horse's mane is often black. Red blood cells are round in order to move easily through blood vessels.
BOOM 100 POINTS!
Answers
Answer:the last one
Explanation: red blood cells are round in order to move easily through blood vessels.
Answer:
Heya Lucian...when you see this comment on my recent so we can talk lol
Explanation:
Didn't know anyone else from k12 was hereeeeeeee
What molecules are carbon atoms in before the chemical change?
Answers
Answer:
Carbon Dioxide molecules
Explanation:
What function(s) does mitosis fulfill for multicellular organisms?
a. Growth
b. Sexual reproduction
c. Repair
d. Protein synthesis
e. Respiration
Answers
Mitosis is vital for multicellular organisms as it plays an essential role in their growth and maintenance.
Mitosis is a process of cell division that results in two daughter cells each having the same number and kind of chromosomes as the parent nucleus, typical of ordinary tissue growth. Mitosis plays a crucial role in the development and maintenance of multicellular organisms. One of the primary functions of mitosis is growth, which enables the organism to increase in size. During mitosis, cells divide and multiply, which helps in the growth and development of various organs and tissues. Moreover, mitosis also facilitates the repair of damaged or injured tissues, which is crucial for the survival of multicellular organisms. It is essential for the replacement of old or damaged cells with new ones, ensuring that the organism functions efficiently. Sexual reproduction, protein synthesis, and respiration are not functions of mitosis.
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What best describes the radiation emitted from the sun?
A. It travels at different speeds
B. It is made up of one type of electromagnetic wave
C. It is made up only of yellow light
D. It is made up of different frequencies of light
Answers
Answer: B. Radiation emitted from the sun contains one type of electromagnetic wave .
15
Approximately how many degrees does Earth rotate on its axis over this five-hour period?
15°
45
75"
90°
A
Eliminator
8
Line Reader
Reference
CA
Period
Answers
Over a five-hour period, Earth rotates approximately 75 degrees on its axis. This calculation is based on the proportion that relates the time taken for Earth's complete rotation (24 hours) to the corresponding degrees of rotation (360 degrees).
The rotation of the Earth on its axis takes approximately 24 hours to complete one full rotation, which equals 360 degrees. To calculate how many degrees Earth rotates over a specific time period, we can use a simple proportion.
In this case, we have a time period of 5 hours. We can set up the proportion:
5 hours is to x degrees as 24 hours is to 360 degrees.
Using cross-multiplication, we can solve for x:
5 hours * 360 degrees = 24 hours * x degrees
1800 degrees = 24x
Dividing both sides by 24:
1800 degrees / 24 = x degrees
75 degrees = x
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Height in humans generally shows a normal (bell-shaped) distribution. What type of inheritance most likely determines height
Answers
Answer:
polygenic inheritance
Explanation:
In the 1940s and 1950s, Dr Barbara McClintock studied mosaic colour patterns in corn and discovered their unstable inheritance and the underlying mechanisms. In 1983 she was awarded the Nobel Prize in Physiology/Medicine for her discovery, and is now considered one of the most influential geneticists of the 20th century. (a) Name two synonymous names for the genetic elements that Dr McClintock discovered
(b) What can these genetic elements do, and what can the consequences be for a gene and for a host genome?
(c) Which gene function do these elements require for their activity, and what are the two classes that these elements can be assigned to, and how do these two classes function in a host genome? (d) Why did Dr McClintock initially find resistance to publish her findings and in the scientific community, to the point that she did not publish these for 20 years, and why were her ground-breaking research findings a paradigm shift in the end?
Answers
They are known by two synonymous names: transposable elements or transposons. These elements can move within a genome and have various consequences for a gene and the host genome.
(a) The two synonymous names for the genetic elements discovered by Dr. McClintock are transposable elements and transposons. These terms refer to segments of DNA that have the ability to move or transpose within a genome.
(b) Transposable elements can have various effects on genes and the host genome. They can insert themselves into a gene, disrupting its function and causing mutations. They can also influence gene expression by inserting near regulatory regions, affecting the level of gene activity. Additionally, transposable elements can cause genomic rearrangements, such as duplications, deletions, or inversions, altering the structure of the genome.
(c) The activity of transposable elements requires specific genes called transposase genes. Transposase enzymes catalyze the movement of transposable elements within the genome. Transposable elements can be classified into two main classes: Class I retrotransposons and Class II DNA transposons. Class I retrotransposons transpose via a copy-and-paste mechanism, where the element is first transcribed into RNA, then reverse transcribed back into DNA and inserted at a new location. Class II DNA transposons, on the other hand, move through a cut-and-paste mechanism, directly excising from one genomic location and reinserting into another.
(d) Dr. McClintock initially faced resistance and skepticism from the scientific community, which led her to withhold publishing her findings for nearly 20 years. At the time, the prevailing belief was that genes were fixed entities with stable positions in the genome. Dr. McClintock's discovery of mobile genetic elements challenged this view and was initially met with skepticism.
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Mitosis and meiosis are different processes, but have some basic similarities. Which of the following describes an event that would take place in the process of meiosis, but not mitosis?
A.) Condensed chromosomes line up in the center of the nucleus in metaphase.
B.) The cytoplasm is divided between two cells through cytokinesis.
C.)There would be only one cell division resulting in two new cells.
D.) Chromosomes cross over and swap gene sequences.
Answers
This event occurs during meiosis, but not mitosis. During meiosis, homologous chromosomes pair up and exchange segments of genetic material in a process called crossing over. This results in new combinations of genes on the chromosomes, increasing genetic diversity. In contrast, mitosis does not involve the pairing of homologous chromosomes, and there is no crossing over.
La circulación __________ lleva la sangre a los pulmones para purificarla y luego la regresa al corazón para que la circulación __________ se encargue de repartirla a todos los órganos del cuerpo11.La parte líquida de la sangre se llama __________
Answers
Answer:
pulmonar; sistemica; plasma
Explanation:
La circulación pulmonar es responsable de llevar sangre del corazón a los pulmones. En este caso, la sangre rica en dióxido de carbono sale del ventrículo derecho a través de la arteria pulmonar, llega a los pulmones, sufre intercambio de gases y regresa a la aurícula izquierda del corazón a través de las venas pulmonares.
La circulación sistémica es responsable de garantizar que la sangre oxigenada se transporte por todo el cuerpo y que la sangre rica en dióxido de carbono regrese al corazón.
El plasma sanguíneo es una solución acuosa amarillenta que consiste en agua, minerales y proteínas. Su función es transportar estas sustancias por todo el cuerpo. El plasma representa aproximadamente el 55% del volumen sanguíneo.
A study has shown 75% of teenage boys drink 1 liter of soda per day. How many 250 ML cans of soda would a boy drink in a week if he drank 1L per day?
Answers
According to the study, if the boy drinks one liter of soda per day then, he will drink 28 soda cans of 250mL volume in a week (seven days). Each day, he drink four cans of 250mL.
What is Soda drink?A soft drink is a drink which usually contains water, artificial sweeteners, and a natural or artificial flavoring agent. The sweetener used in the soda drink can be a sugar, high-fructose corn syrup, fruit juice, a sugar substitute, or combination of these compounds. They may also contain caffeine, coloring, preservatives, and other ingredients.
If a boy drinks 1 liter of soda per day. Then, the number of cans of 250mL soda he drinks in a day will be:
1 liter = 1000mL
Number of cans which a boy drinks in a day = 1000mL/ 250mL
Number of cans of soda = 4
The number of cans which a boy drink in a week i.e., 7 days = Number of cans which a boy drink in a day × number of days in a week
Therefore, the number of cans which a boy drink in a week = 4 × 7
The number of cans of soda = 28
Therefore, the boy drinks 28 cans of soda in a week.
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A patient was suffering from an infection.
His blood report showed an increase in the
number of white blood cells. What could the
reason for this be?
Answers
Answer:
possibility of a blood-borne infection
Explanation:
the amount of white blood cells increase if the infection is a blood borne infection or the infection has reached the blood vessels and capillaries
Answer:
When you get sick, your white blood cell count is higher than normal. This is because your body is releasing more of these cells to fight the infection.
Explanation: