Suppose two individuals with the genotype A a B b C c are mated. Assuming that the genes are not linked, what fraction of the offspring are expected to be homozygous recessive for the three traits? (A) 1 / 4 (B) 1 / 8 (C) 1 / 16 (D) 1 / 64
Answers
Correct option (B) 1 / 8
This fraction of offspring are expected to be homozygous recessive by the traditional method of solving this problem can be using punnett square. Punnett square of normal trihybrid cross.
Genotype AABBCC will produced only one type of gamete which is ABC. The frequency for production of ABC gamete is 1. Genotype AaBbCc can produced eight type of gametes such as ABC, Abc, ABc, AbC,abc, aBc, aBc and abC. Heterozygous cross will occur only when abc gamete from AaBbCc present fertilises with ABC gamete from AABBCC.
The hybrid for all the three genes AaBbCc=1/8. The probabiulity of aabb offspring when AaBb parents are crossed is 1/16.
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Related Questions
What 3 things DNA made up of
Answers
A type of isolating mechanism that leads to reproductive isolation after a hybrid zygote has formed is called a _____________ isolating mechanism.
Answers
Answer:
postzygotic isolating mechanism
Explain mechanism of transportation in mollusca
Answers
Answer:
The mollusk circulatory system uses a heart to pump blood through the organism, and the respiratory system of aquatic mollusks centers around their gills. The heart pumps blood through blood vessels that lead from the gills into body cavities called hemocoels.
when is the dna of the cells' chromosomes copied? a) after g2 b) at the beginning of mitosis c) during s phase
Answers
The DNA of the cells' chromosomes is copied during S phase of the cell cycle.
The full form of DNA is deoxyribonucleic acid. It is a molecule that contains genetic information and instructions for the development and function of living organisms. S-phase or synthesis phase is a stage of interphase, which is the cell cycle's most prolonged phase.
DNA replication occurs in this stage, which means that the cell's DNA is duplicated to prepare for mitosis, which happens during the next stage, the G2 phase.
S phase also ensures that the DNA is correctly copied before being separated during cell division. Chromosome duplication happens in the S-phase of interphase.
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Someone please help me with 3-10 please! Thank you!
Answers
Which location data is likely the most accurate?
which measurement is likely the least accurate? What observations and/or patterns do you see in the data?
Answers
hevdhsbrvshsne
why do we need to know science or the nature of science?
Answers
Answer:
A fundamental reason for teaching about the nature of science is to help our students to think for themselves and reach their own explanations and conclusions in ways that consider the scientific dimensions of socio scientific issues
Analyzing Patterns of Climate and Life in Hawai'i
To get a better sense of this unique place, examine the information that follows. As you view the video and
images and analyze the data table and reading passage, record patterns you notice as well as similarities an
differences between the Hawaiian Islands and the contiguous, or continental, United States. What stands or
to you?
Answers
Analyzing patterns of climate and life in Hawai'i reveals the unique environment of the Hawaiian Islands, which has evolved over millions of years. Comparing the Hawaiian Islands to the contiguous United States, there are significant differences in climate and life, which can be attributed to the isolation of the islands.
Hawai'i is a unique place with a distinct climate and life. The Hawaiian Islands are isolated from the contiguous United States and have developed their own unique environment over time. Analyzing patterns of climate and life in Hawai'i reveals fascinating facts. The climate in Hawai'i is tropical and has moderate temperatures throughout the year. The islands have a significant amount of rainfall, which makes them lush and green. The volcanic soil on the islands is nutrient-rich and supports a diverse range of plant and animal species. One unique aspect of the Hawaiian environment is that the islands have few native mammal species, but a significant number of endemic bird species. This is because the Hawaiian Islands have been isolated for millions of years and the unique environment has led to the evolution of distinct plant and animal species.
Comparing the Hawaiian Islands to the contiguous United States, there are significant differences in climate and life. The contiguous United States has a variety of different climates, ranging from tropical to temperate and arctic. The climate in the contiguous United States is also affected by the jet stream and various weather systems that move across the continent. The plant and animal life in the contiguous United States are also diverse and vary depending on the region. However, unlike Hawai'i, the contiguous United States has many native mammal species, such as deer, bears, and wolves.
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Which activated carrier contains a high-energy bond whose hydrolysis releases a large amount of free energy?Choose one:
A. water
B. high-energy electrons
C. glucose
D. NADH
E. ATP
Answers
E is the right answer. In ATP, there is a high-energy link that when hydrolyzed, releases a lot of free energy.
What is ATP?
Adenosine triphosphate (ATP) is an organic substance that supplies energy for a variety of functions in living cells, including muscular contraction, nerve impulse transmission, condensate dissolving, and chemical synthesis. The "molecular unit of currency" of intracellular energy transfer, ATP is a substance that is present in all known forms of life. When ingested through metabolic processes, it either transforms into adenosine monophosphate (AMP) or adenosine diphosphate (ADP) (AMP). Some other procedures renew ATP. Each day, the human body recycles an amount of ATP equal to its own body weight. It functions as a coenzyme and is a precursor to DNA and RNA. A substance present in all living cells that provides energy for many metabolic processes and is involved in the production of RNA. Lab-made ATP is being studied in patients with advanced solid tumors to see if it can reduce weight loss and improve muscle strength.
ATP contains two high-energy phosphoanhydride bonds between the three phosphate groups of ATP, and when hydrolyzed, produces enormous amounts of energy that are used in cell function.
Therefore, ATP is the correct answer.
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Which statement best describes the order of materials in the fossil record?
a. Newer fossils are found in higher layers than older fossils.
b. Older fossils are found in higher layers than newer fossils.
c. Older rock layers form on top of the newer layers.
d. None of the above
Answers
Answer:
b
Explanation:
The Florida panther was once considered to be a subspecies of cougars. Current scientists, however, have studied the Florida panther and removed the subspecies classification
Which of the following would explain why the classification of the Florida panther changed?
A.) New genetic evidence suggests a much closer relationship between the Florida panther and other cougars
B.) Advanced technologies have shown a large difference in cell structure between the Florida panther and other cougars.
C.) Study of their embryos shows major differences in the development of the Florida panther fetus when compared to other cougars
D.)Shared physiological features
between the Florida panther and other cougars were also found in newly discovered organisms in the world.
Answers
Suppose water costs $5.00 per 1,000 gallons for the first 10,000 gallons. For every 10,000 additional gallons the price increases $0.15 more per gallon. What would it cost to use 10,000 gallons of water? What would it cost to use20,000 gallons?
Answers
Answer:
i) $50 ii) $101.5
Explanation:
1,000 gallons --> $5
1 gallons --> 5/1000
i) 10,000 gallons --> 10 * 5 = $50
ii) 20,000 gallons --> $50 + $50 = $100
took 10 more gallons so, $0.15 * 10 = $1.5
$100 + $1.5 = $101.5
The cost of gallons in the given case is $50 and $101.5. When For every 10,000 additional gallons, the price increases by $0.15.
What is the cost?The cost is the amount of money that has been operated up to assemble something or supply a service and hence is not available for use anymore.
Computation of cost of a gallon:
According to the given information,
The value of water cost per 10,000 gallons = $5
So, the value of each gallon is:
\(=\dfrac{\$5}{1,000}\\\\=0.005.\)
Case i:
Cost of 10,000 gallons of water :
\(=10\times \$5\\\\=\$50\)
Case ii:
Cost of 20,000 gallons of water :
\(=\$50+\$50\\=\$100\)
Addition of 10 more gallons, so:
\(=\$0.15 \times 10 \\=\$1.5\)
Then, the value of gallon is :
\(=\$100 + \$1.5 \\= \$101.5\)
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Where does the mass come from when growing an oak tree I need to write a paragraph so someone help me
Answers
Which of the following statements is/are correct concerning biodiversity?
Biodiversity has a spiritual value
The conservation of biodiversity is crucial to protect our health
Food biodiversity is the central component of quality diet and food safety
Global anthropogenic change is the cause of the unprecedented loss of biodiversity in the planet
Biodiversity refers to diversity of life in all its forms, from the molecular level to the ecosystem level
Answers
The statement which are correct regarding biodiversity are the conservation of biodiversity is crucial to protect our health and Global anthropogenic change is the cause of the unprecedented loss of biodiversity in the planet.Thus, option B and D are correct.
Who contributes to maintain the balance of nature?Every species on the Earth contributes significantly to the nature's intricate balancing act. Forests are the fragmented as the result of the natural disturbances just like fires or changes in land use like building roads.
As the result of these habitat alterations, biodiversity has significantly impacted since limited habitat fragments can only maintain weak populations that are more susceptible to extinction.
Therefore, The statement which are correct regarding biodiversity are the conservation of biodiversity is crucial to protect our health and Global anthropogenic change is the cause of the unprecedented loss of biodiversity in the planet.Thus, option B and D are correct.
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what energy source contributes most to climate change
Answers
Which atom has the lowest electronegativity?
Answers
Answer: iodine
Explanation: So, iodine has the lowest electronegativity. Fluorine has the highest electronegativity followed by chlorine, bromine and then with the least reactivity we have iodine,amongst the given options. Hence, option D is correct. Note: The noble gases i.e. group 18 elements have no electronegativity.
Answer:
Francium
Explanation:
Nucleic acids carry something that
makes you unique and a one of a
kind. What is this?
A. lipids
B. genetic code
C. carbohydrates
D. proteins
Answers
Answer:
The answer is genetic code I hope it helps you
List the seven major fish body forms. For three of the seven body forms, briefly
describe how physical characteristics are related to the habitat and niche of fish
species in that category.
Answers
The seven major fish body forms are- fusiform, compressiform, anguilliform, filiform, depressiform, sagittiform, and globiform.
Below are the descriptions of the three body forms and how their physical characteristics are related to their habitat and niches:Fusiform body form: This body form has a streamlined shape that allows for easy movement through the water. It is most commonly found in open-water fish, such as tuna and mackerel, that need to move quickly to catch prey and avoid predators. Its narrow shape reduces drag, which increases its swimming speed. The fusiform body form is particularly adapted for fast swimming, and it is typically found in fish that are pelagic (live in open water).
Compressiform body form: This body form is flattened from side to side, which gives the fish a ribbon-like appearance. The compressiform body form is well adapted to moving through the water by means of quick, darting movements. They are generally found in areas of shallow water or near the bottom of the sea floor, where they can quickly move to escape danger. For example, eels use the compressiform body form to move quickly through small crevices.Anguilliform body form: This body form is characterized by a long, thin shape that allows the fish to easily move through the water.
This body form is found in fish like eels, which live in narrow spaces such as burrows, rock crevices, or coral reefs. The elongated and flexible body structure of anguilliform fish enables them to move through complex environments easily.In summary, the physical characteristics of fish are related to their habitats and niches. Each of these three body forms is adapted to different environments, from open water to rocky crevices, and each is suited to a different type of swimming or movement.
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Have An Amino Group And A _____________ Group Attached To The Central _______________. There AreFor each of the following sentences, fill in the blanks with the best word or phrase selected from the list below. Not all words or phrases will be used; each word or phrase should be used only once. Proteins are ______________ built from amino acids, which each have an amino group and a _____________ group attached to the central _______________. There are twenty possible _______________ that differ in structure and are generally referred to as "R." In solutions of neutral pH, amino acids are _______________, carrying both a positive and negative charge. When a protein is made, amino acids are linked together through _______________, which are formed by condensation reactions between the carboxyl end of the last amino acid and the ___________________ end of the next amino acid to be added to the growing chain.a: amino b: ionized c: polypeptidesd: alpha-carbon e: length f: proteing: carbon h: noncovalent i: R groupj: carboxyl k: peptide bonds l: side chainsm: hydroxide
Answers
Amino acids, which each have an amino group and a carboxyl group connected to the core alpha-carbon, are the building blocks of proteins.
Have An Amino Group And A Carboxyl Group Attached To The Central Alpha-carbon. There Are Twenty Possible R Groups That Differ In Structure And Are Generally Referred To As "R." In Solutions Of Neutral pH, Amino Acids Are Ionized, Carrying Both A Positive And Negative Charge. When A Protein Is Made, Amino Acids Are Linked Together Through Peptide Bonds, Which Are Formed By Condensation Reactions Between The Carboxyl End Of The Last Amino Acid And The Amino End Of The Next Amino Acid To Be Added To The Growing Chain.
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Red bone marrow is found in the adult skeleton in all of the following places EXCEPT:
a. Medullary cavity
b. Metaphysis
c. Epiphysis
d. Pelvic crest
Answers
Red bone marrow is found in the adult skeleton in all of the following places EXCEPT the Medullary cavity. Red bone marrow is not found in the medullary cavity. Hence, option A is the correct answer.
Red bone marrow is found in several locations within the adult skeleton, including the medullary cavity, metaphysis, and epiphysis. However, it is not typically present in the pelvic crest.
The medullary cavity, also known as the marrow cavity, is the central hollow space within long bones. It contains yellow bone marrow, which is primarily composed of adipose (fat) cells.
In infants, the medullary cavity contains red bone marrow, responsible for hematopoiesis (formation of blood cells). As an individual matures, the red bone marrow gradually converts to yellow bone marrow, with red marrow being mainly confined to specific areas.
The metaphysis is the region of a long bone where the diaphysis (shaft) and epiphysis (ends) meet. It contains red bone marrow, which continues to play a role in hematopoiesis.
The epiphysis refers to the ends of long bones. It contains spongy bone, which houses red bone marrow. This red marrow is responsible for the production of red blood cells, white blood cells, and platelets.
While red bone marrow is present in the medullary cavity, metaphysis, and epiphysis, it is not typically found in the pelvic crest. The pelvic crest consists mainly of compact bone and contains yellow bone marrow.
Overall, red bone marrow is crucial for hematopoiesis and is primarily found in the medullary cavity, metaphysis, and epiphysis of long bones, excluding the pelvic crest.
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List the layers in order from oldest to youngest
Answers
hope the helped and/or made sense <3
Which of the claims about the burning of wood is supported by Joan’s model?
Answers
The claims about the burning of wood that are supported by Joan's model are:
A. Matter is conserved during the burning of wood.E. Burning wood involves oxygen as well as carbon.What is Joan's model about?Joan's model shows that the burning of wood is a chemical reaction that involves the combination of oxygen and carbon. The reaction produces carbon dioxide and water vapor.
The model also shows that the reaction is reversible, meaning that it can occur in both the forward and reverse directions. However, the reverse reaction is much slower than the forward reaction, so it is not typically observed.
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Complete question:
Which of the claims about the burning of wood is supported by Joan's model? Select all the claims that are
supported.
A. Matter is conserved during the burning of wood.
B. Chemical energy is conserved during the burning of wood.
C. Burning wood involves a series of chemical reactions that occur in one direction only.
D. Burning wood involves a series of chemical reactions that occur in both the forward and reverse directions.
E. Burning wood involves oxygen as well as carbon.
Can somebody help please due today
Answers
Answer:
Fossil record, history of life as documented by fossils, the remains or imprints of organisms from earlier geological periods preserved in sedimentary rock. Their ages can be established by comparing the fossils in each layer.
Answer:
Explanation:
Fossil record, history of life as documented by fossils, the remains or imprints of organisms from earlier geological periods preserved in sedimentary rock. Their ages can be established by comparing the fossils in each layer.
Credits to the person under me i just need points
(pretty sure its correct tho)
2. The formation of a new community where another community already exists is known as ______.
A primary succession
B secondary succession
C pioneer community
D pioneer species
Answers
Answer:
B secondary succession
Explanation:
Which statement is FALSE about epigenetic modifications?
a. The tails of the nucleosome octamer components can be modified with methylation
b. The tails of the nucleosome octamer components can be modified with acetylation
c. Only non-DNA components of chromatin are modified with epigenetic markers
d. Epigenetic modifications control whether a region is euchromatin or heterochromatin
Answers
The false statement about epigenetic modifications is:
c. Only non-DNA components of chromatin are modified with epigenetic markers.
Epigenetic modifications refer to changes in gene expression that do not involve changes to the underlying DNA sequence. These modifications can be inherited and can influence how genes are turned on or off in different cells or at different stages of development.
a. The tails of the nucleosome octamer components can be modified with methylation: This statement is true. Methylation of the tails of nucleosome octamer components, which are made up of histone proteins, can affect gene expression by either activating or repressing the associated genes.
b. The tails of the nucleosome octamer components can be modified with acetylation: This statement is also true. Acetylation of histone tails is another type of epigenetic modification that can influence gene expression. Acetylation generally leads to gene activation by relaxing the chromatin structure and allowing transcription factors to access the DNA.
d. Epigenetic modifications control whether a region is euchromatin or heterochromatin: This statement is true. Epigenetic modifications play a crucial role in determining whether a region of DNA is in a euchromatin state, which is more accessible for gene expression, or a heterochromatin state, which is more condensed and less accessible for gene expression.
In summary, the false statement is c. Only non-DNA components of chromatin are modified with epigenetic markers. Epigenetic modifications can occur on both DNA and non-DNA components of chromatin, such as histone proteins. These modifications can have significant impacts on gene expression and are essential for cellular development and function.
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what are the advantage and disadvantages of bacteria
Answers
Answer: Some bacteria cause infections or produce toxic substances that are a threat to life and/or health
Explanation: Bacteria cause spoiling of food so that it does not keep as long as we may desire. Some bacteria may cause infections of plants, threatening our food supply or ornamental plant
Could you tell me if the answer is right?
Answers
Answer:
Yes this is correct.
Explanation:
Spindles are necessary to equally divide chromosomes during mitosis
A group of prokaryotes that are evolutionarily distinct from bacteria and that thrives in some of the most extreme environments on earth; one of the three domains of life. Group of answer choices Archaea Algae Protists Slime molds
Answers
A group of prokaryotes that are evolutionarily distinct from bacteria and are known for thriving in some of the most extreme environments on earth is archae (A).
Archaea (A) are a group of prokaryotes that are distinct from bacteria and eukaryotes. Archaea are found in a wide range of environments, including extreme conditions such as high temperatures, high salinity, and low pH, that would be inhospitable to most other forms of life. They are thermophiles, and halophiles and also grow in found in other extreme environments such as acidic hot springs, deep-sea vents, and even the human gut. Some archaea are able to produce methane and are found in environments such as wetlands, rice paddies, and the digestive tracts of animals such as cows and termites.
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Tetrodotoxin (TTX) and botulinum toxin (BTX) are two neurotoxins that causes paralysis. What is(are) the underlying mechanism(s)? a) Both block the voltage-gated Na+ channels to inhibit the firing of
Answers
Tetrodotoxin (TTX) and botulinum toxin (BTX) are two neurotoxins that cause paralysis. The underlying mechanisms are given below:a) Both block the voltage-gated Na+ channels to inhibit the firing of action potentials.
Both tetrodotoxin (TTX) and botulinum toxin (BTX) block voltage-gated Na+ channels to inhibit the firing of action potentials, which results in paralysis. Tetrodotoxin (TTX) is a potent neurotoxin that is found in pufferfish, whereas botulinum toxin (BTX) is produced by the bacteria Clostridium botulinum.
Both neurotoxins inhibit the release of neuro transmitters from nerve endings in muscles. TTX inhibits the release of acetylcholine (ACh) by blocking voltage-gated Na+ channels in the axons of nerve cells that supply the muscles. Botulinum toxin (BTX) prevents the release of ACh from nerve endings by blocking the docking of vesicles containing ACh with the plasma membrane of the nerve ending. As a result, muscle contraction is prevented, leading to paralysis.
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. An organism that has two different alleles of a given gene has a(n) _____ genotype. aneuploid dizygous heteromorphic heterozygous homozygous
Answers
An organism that has two different alleles of a given gene has a(n) heterozygous genotype. aneuploid dizygous heteromorphic heterozygous homozygous
Heterozygous genotypes are characterized by two different alleles of a particular gene. These alleles can be inherited from different parents or from the same parent, and this type of genotype is also known as a dizygous genotype.
An example of this is eye color; if an individual has one allele for blue eyes and one allele for brown eyes, they would have a heterozygous genotype. This type of genotype is important for producing genetic diversity, allowing for adaptations that can be beneficial to a species. It is also important to note that having a heterozygous genotype does not guarantee that the individual will express the traits of both alleles; rather, the individual will usually express the trait of the dominant allele.
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