contestada

Imagine you are a geneticist interested in studying a newly discovered species of very colorful birds. You have found that a single gene is responsible for their beautiful colors and that yellow birds are homozygous for the yellow allele, green birds are homozygous for the green allele and blue birds are heterozygous for these alleles. You focused your efforts on studying one specific population and counted 9% yellow, 49% green and 42% blue birds. What are the allele frequencies in this population?

a) yellow = 0.09, green = 0.49
b) yellow = 0.9, green = 4.9
c) yellow = 0.3, green = 0.7
d) yellow = 0.5, green = 0.5
e) proportion of alleles cannot be determined because the population is evolving

Respuesta :

KerryM

Answer:

C

Explanation:

Yellow = YY = 9% = 0.09

Green = YG = 49% = 0.49

Blue = GG = 42% = 0.42

______________________________________________________

[tex]Frequency of yellow allele = YY + \frac{YG}{2}[/tex]

(because half of the YG (blue) genotype comes from the Y allele)

Therefore frequency of Y = 0.09 + (0.49/2)

Y = 0.09 + 0.245

Y = 0.335

Yellow = 0.3

______________________________________________________

[tex]Frequency of green allele = GG+ \frac{YG}{2}[/tex]

(because the other half of the YG (blue) genotype comes from the G allele)

Therefore frequency of G = 0.09 + (0.49/2)

G = 0.49 + 0.245

G = 0.335

Green= 0.7

Therefore, the answer is C

c) yellow = 0.3, green = 0.7

  • The calculation is as follows:

The frequency of Y = 0.09 + (50% of 0.49)

Y = 0.09 + 0.245

Y = 0.335

Yellow = 0.3

And,

The frequency of G = 0.09 + (50% of 0.49)

G = 0.49 + 0.245

G = 0.335

Green= 0.7

Learn more: https://brainly.com/question/5101300?referrer=searchResults

Otras preguntas