What are the genotypic and phenotypic distributions for the F1 and F2 generations from a cross between a chick with black (BB) feathers and chicken with white (WW) feathers if the color is determined by alleles that show codominance. The heterozygote is an erminette chicken, which is black and white speckled.
Answers
Answer:
Please find the punnet square to this question as an attachment
F1 generation:
genotype = BW
Phenotype = Erminette offsprings
F2 generation:
genotype = BB (1): BW(2): WW(1)
Phenotype = 1 Black, 2 Erminette, 1White
Explanation:
This question involves a gene coding for feather color in chickens. The allele for black feathers (B) is codominant with the allele for white feathers (W) to form an erminette chicken (black and white speckles).
According to this question, a cross between a chick with black (BB) feathers and chicken with white (WW) feathers will result in an all erminette chicken (BW) in the F1 generation (see attached image)
Also, in the F2 generation got by self-crossing the Erminette genotype in the F1 generation (BW), the following genotypic and phenotypic ratios are observed:
Genotypic ratio = BB (1): BW(2): WW(1)
Phenotypic ratio = 1 Black, 2 Erminette, 1White
Related Questions
When scientists discuss the Sixth Extinction, they are referring to which pattern in the rate of extinction?
Answers
Explanation:
The Holocene extinction, otherwise referred to as the sixth mass extinction or Anthropocene extinction, is an ongoing extinction event of species during the present Holocene epoch (with the more recent time sometimes called Anthropocene) as a result of human activity.[3][4][5] The included extinctions span numerous families of plants[6] and animals, including mammals, birds, reptiles, amphibians, fishes and invertebrates. With widespread degradation of highly biodiverse habitats such as coral reefs and rainforests, as well as other areas, the vast majority of these extinctions are thought to be undocumented, as the species are undiscovered at the time of their extinction, or no one has yet discovered their extinction. The current rate of extinction of species is estimated at 100 to 1,000 times higher than natural background extinction rates.
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In Geckos spots are dominate to striped. If two Gecko that are RR and rr what is the possibility of the offspring being spotted?
Answers
Answer:
100%
Explanation:
All offspring will be heterozygous and inherit the dominant trait along with the recessive. Dominant traits always show over the recessive. Thus, all offspring will be spotted.
In certain rats, black fur is dominant over white fur, If two rats that are both heterozygous for fur colored are mated, what would their offspring be expected to have?
Answers
Answer:
Three different genotypes and two different colors
Explanation:
Because both rats have heterozygous genes, meaning they have 2 different alleles, ex: "Yy") The offspring can have different genotypes and colors because the parents have heterozygous genes.
hope this helps!
The offsprings of the cross between two heterozygous rats will have the following genotypes: BB (black), Bb (black) and bb (white).
According to this question, a gene coding for fur color in rats is involved. The allele coding for black fur (B) is dominant over the allele for white fur (b). If two rats that are both heterozygous for fur are crossed i.e. Bb × Bb, gametes B and b will be produced by both rats. Using this gamete in a punnet square (see image), the following offsprings will be produced: BB, Bb and bb. BB - black offspringBb - black offspringbb - white offspringTherefore, the offsprings of the cross between two heterozygous rats will have the following genotypes: BB (black), Bb (black) and bb (white).Learn more at: https://brainly.com/question/3712307?referrer=searchResults
What three atoms build ALL
carbohydrates?
Water, Carbon, and Oxygen
Carbon, Hydrogen, and Oxygen
Carbon, Hydrate, and Water
Water, Oxygen and Carbon Dioxide
Answers
Carbon hydrogen and oxygen are the three atoms present in carbohydrates
You just wrote in the template strand of DNA. Use the template strand to transcribe a strand of mRNA.
Write down the tRNA anti-codons that pair with the mRNA strand.
Answers
Answer: the codon is the three nucleotide sequence in the mRNA that indicates which amino acid should be incorporated in the growing polypeptide chain. The anticodon is the complementary three nucleotide sequence in the appropriate tRNA. Template stand is the DNA strand off which the mRNA is synthesized.
Explanation:
The codon is the three nucleotide sequence in the mRNA that indicates which amino acid should be incorporated in the growing polypeptide chain.
What is Codons?
The anticodon is the complementary three nucleotide sequence in the appropriate tRNA. Template stand is the DNA strand off which the mRNA is synthesized.
Codons are units of genomic information made up of three nucleotides (trinucleotides) in DNA or RNA that code for a specific amino acid or indicate the end of protein synthesis (stop signals). There are 64 distinct codons, of which 3 serve as stop signals and 61 identify amino acids.
The bases that make up DNA and the associated messenger RNA are called bases. These nucleotides are frequently identified in RNA by the letters A, U, C, and G.
Therefore, The codon is the three nucleotide sequence in the mRNA that indicates which amino acid should be incorporated in the growing polypeptide chain.
To learn more about codon, refer to the link:
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Binary fission and mitotic cell division is the same true or false
Answers
Answer:
False
Explanation:
Binary fission is method of asexual reproduction.
Mitotic cell division results in a 2 cell daughter type thing
*not exact words on the Mitotic Cell one*
which part of the heart has the thickest walls?
Answers
Answer:
left ventricle. Hope this helps!
Answer:
left ventricle
Explanatation:
The left and right ventricle are similar in structure, the walls of the left ventricle are thicker and stronger.
PLEASE HELP ME!!!
3) Describe a eukaryotic cell. Your description should include where you would expect to
find these types of cells.
4)Describe a prokaryotic cell. Your description should include where you would expect to
find these types of cells.
Answers
3)Eukaryotic cells have membrane-bound organelles. They have a nucleus. They are usually found in animals and plants. In all multicellular organisms and some unicellular(amoeba)
4)Prokaryotic cells don't have a nucleus. They don't contain membrane-bound organelles they only contain ribosomes.They are much smaller. Bacteria are prokaryotes.
A tropical wet climate exists in the United States only in
1 point
a. Oregon and Washington,
b. Florida.
c. Hawaii.
O d. California.
Answers
Answer:
C. Hawaii
Explanation:
Question: A tropical wet climate exists in the United States only in
a. Oregon and Washington,
b. Florida.
c. Hawaii.
d. California.
The answer you are looking for is C. Hawaii
Mitosis occurs in living things when a cell divides to produce two cells. Compared to the original cell, how many chromosomes are in each of the resulting cells?
A.The same number
B.Twice as many
C.Half as many
D.An unpredictable number
Answers
A
Explanation:
After mitosis, two identical cells are produced with the same original number of chromosomes of the parent's cell. In this case, if a cell has 24 chromosomes, each daughter cell will have 24 chromosomes after mitosis
What is the correct DNA base sequence for the following line of DNA:
ATATCGCG
TATAGCGC
O ATATCGCG
O ATCGATCG
O GGCATTAT
Answers
Answer:
I took this a couple weeks ago and the answer is your thrid option I believe.
Hope this helps :))))
Explanation:
What would happen if the arteries couldn’t deliver oxygen to your cells?
Answers
Answer:
Blood delivers oxygen to all the body's cells. To stay alive, a person needs healthy, living cells. Without oxygen, these cells would die. If that oxygen-rich blood doesn't circulate as it should, a person could die.
Explanation:
which process is best illustrated by the diagram?
Answers
Answer:
Photosynthesis
Explanation:
bc thats how plants like it uwu
Photosynthesis is illustrated by the diagram.
What is photosynthesis?Photosynthesis is a process through which plants and other organisms transform light energy into chemical energy, which is then released to power the organism's activities through cellular respiration.6CO2 + 6H2O = C6H12O6 + 6O2 Above equation is a typical representation of photosynthesis. This signifies that light energy captured by chlorophyll (implied by the arrow) converts the reactants, six carbon dioxide molecules and six water molecules, into a sugar molecule and six oxygen molecules, the products as shown in the picture provided.learn more about Photosynthesis here:
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Two characteristics of most plants are a root system and a shoot system. Most of the structures in these systems are common to all plants; however, there are some variations. Which structure can sometimes be found as part of the shoot system? Stems leaves roots flowers
Answers
Answer:
stems, leaves, flowers
Explanation:
There are two parts in the plants ----
1. the shoot system
2. the root system
Shoot system are defines as the upper part of the plant which means it is the part that lies above the ground or surface. It consists of stem, leaves and flowers. It is responsible for food production and is the production center of a plant.
The root system is the part that is under the soil. It holds the plant in its place and helps to absorb water and mineral from the soil. It helps to store the products of the photosynthesis process from the shoot system.
When you see wood burning, what evidence do you observe that a
chemical change is happening? Click ALL that apply.
Answers
Answer: It's heat given off
Explanation:
describe and explain how the rate of photosynthesis is affected by light intensity
Answers
which part of a plant is necessary for photosynthesis
Answers
Answer:
Chloroplasts
Explanation:
Answer:
chloroplasts........
The phylum Nematoda includes the flatworms.
a. true
b. false
Answers
Answer:
False
Explanation:
Pls guys help me I need the answer plsss if you help others it will get you
Answers
Answer:
for 5: The primary factors include the sun intensity as well as air temperature. When the temperature raises about 32 degrees, snow will begin to melt.
for 1: When volume decreases, particles would collide into each other and the wall of the container, making the air more compact and strong. Always remember when volume decreases, pressure increases. When volume increases, pressure decreases
Explanation:
Answer:
5 is because of the sun and 1 is is breaks down
sorry for the lame answer
Explanation:
why is cell called the fundamental unit of life
Answers
Answer:
Cell is called the Fundamental Unit of Life Because all basic metabolism activity starts from the cell. Inside the cell, energy is produced , food is stored and many more activities take place
it is structural and functional unit of living beings
it includes all the activities of cells
it is there in each and every life process
In what ways are active transport and passive transport similar?
Answers
Answer:
Active Transport and Passive Transport are similar because then both have nutrients, oxygen, water, and other essential molecules to the cells along with the elimination of waste products.
what is the difference between sexual and asexual reproduction for plants and animals?
Answers
Answer:
That is the main difference between sexual and asexual reproduction. Sexual reproduction just means combining genetic material from two parents. Asexual reproduction produces offspring genetically identical to the one parent.
photosynthesis flow chart
Answers
Answer:
plants take energy from the sun to produce glucose and much more
Explanation:
yeah i just wanted to help a little bit
How does natural selection provide a mechanism for evolution to occur?
Answers
Answer:
Explanation: If resources are limited in nature than only the organisms that adapt to their surroundings will survive- Darwin's studies proved these theories.
which organelle packages materials and distributes them throughout the cell?
A: Lysosome
B: Chloroplast
C: Golgi Body
D: Cell membrane
Answers
Answer:
C: Golgi Body
Explanation:
I know this for sure
Answer:
Golgi body
Explanation:
A Golgi body, also known as a Golgi apparatus, is a cell organelle that helps process and package proteins and lipid molecules, especially proteins destined to be exported from the cell. Named after its discoverer, Camillo Golgi, the Golgi body appears as a series of stacked membranes.
what dose cloraplast do
Answers
Answer:
Chloroplasts are a plant cell organelles and help. plants capture the energy of the sun.
Explanation:
they convert light energy to the sun relatively stable chemical energy via the photosynthetic process. By doing so, they sustain life on Earth
What substance is a major contributor to marine debris
Answers
Answer:
Waste plastic
Explanation:
Waste plastic makes up 80% of all marine debris from surface waters to deep-sea sediments. Plastic has been detected on shorelines of all the continents, with more plastic materials found near popular tourist destinations and densely populated areas.
Why are packed juices contaminated with yeast
Answers
Answer:
It is because yeast is responsible to fix the carbon dioxide.
Is responsible
SOMEONE PLEASE HELP ME DONT BS MEEEEE
Answers
Because you have A,T or C,G or it can be in a different way like UA and CG. It closely related because it’s attached to the other letters and it comes from both parent like mom and dad. but I’m order for them to work they both have be to in the right letter for it be correct.
I hope this help. If you want I can explain it in a different way if you need to. :)
can titanium and steel be combined
Answers
Answer:
Yes, it is possible.
Explanation:
We will not have to actually mix those two metals together, we just have to use different steps to mix those two elements safely.
Answer:
There may be a possiblity but there's no proof that the two were mixed together.