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Gwar [14]
3 years ago
15

7. In some chickens, the gene for feather color is controlled by codominance. The allele for black is B and the allele for white

is W. The heterozygous phenotype is known as
erminette.

a. What is the genotype for black chickens?​ ​

b. What is the genotype for white chickens?​ ​

c. What is the genotype for erminette chickens?​ ​

d. If two erminette chickens were crossed, what is the probability that:

i. They would have a black chick?​ ​​%

ii. They would have a white chick?​ ​​% iä. They would have an erminette chick?​ ​​ %
Biology
1 answer:
kondor19780726 [428]3 years ago
5 0

Answer:

See the answer below

Explanation:

<em>Genotype is the genetic composition of organisms and a gene is made up of two alleles.</em>

a) Since the allele for black is B, <u>the genotype for black chickens would be BB. </u>

b) Since the allele for white is W, <u>the genotype for white chickens would be WW.</u>

c) Since erminette color is heterozygous,<u> the genotype would be BW.</u>

d) Two erminette were crossed:

         BW    x    BW

      BB BW BW WW

i. <em>Probability of having black chick (BB) </em>= 1/4

ii. <em>Probability of having a white chick (WW)</em> = 1/4

iii. <em>Probability of having erminette chicken (BW)</em> = 1/2

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