Clouded sulfur butterflies are common in our area and can be either yellow or wh

Question

Clouded sulfur butterflies are common in our area and can be either yellow or white While most individuals in the total population are yellow, it is known that a single autosomal gene controls color and that the white allele is completely dominant over the yellow allele. However, when analyzing crosses we find the following results: Yellow male x yellow female = 100% yellow males 100% yellow females Yellow male x yellow female = 100% yellow males:50% white females:50% yellow females Yellow male x white female = 100% yellow males:100% white females Yellow male x yellow female = 100% yellow males: 100% white females Yellow male x white female = 100% yellow males 75% white females:25% yellow females What do these results suggest about the genetic inheritance patterns of this trait in clouded sulfur butterflies? In cats, curled ears result from a allele (CU) that is dominant over an allele (cu for normal ears. Black coat color results from an independently sorting allele (G) that is dominant over the allele for gray coat (g). A gray cat that is homozygous for curly ears is mated with a homozygous black cat with normal ears. of the F1 cats have black hair and curly ears. What are the genotypes of the two parents and the F1 cats?

Explanation / Answer

Answer:

8).

ggCUCU (gray, curly) x GG cucu (black, normal)

Gg CUcu(black, curly)---F1

F1 X F1

gg cucu(gray, normal)

Black, curly : Black, normal : Gray, curly : Gray, norma; = 9 : 3 : 3 :1

GCU Gcu gCU gcu GCU GG CUCU (black, curly) GG CUcu (black, curly) Gg CUCU (black, curly) Gg CUcu (black, curly) Gcu GG CUcu (black, curly) GG cucu (black, normal) Gg CUcu (black, curly) Gg cucu (black, normal) gCU Gg CUCU (black, curly) Gg CUcu (black, curly) gg CUCU(gray, curly) gg CUcu(gray, curly) gcu Gg CUcu (black, curly) Gg cucu (black, normal) gg CUcu(gray, curly)

gg cucu(gray, normal)

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