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Ne4ueva [31]
3 years ago
15

Feather color in budgies is determined by two different genes, Y and B, one for pigment on the outside and one for the inside of

the feather. YYBB, YyBB, YYBb or YyBb is green; yyBB or yyBb is blue; YYbb or Yybb is yellow; and yybb is white. A blue budgie is crossed with a white budgie. Which of the following results is possible?
a. green offspring
b. yellow offspring
c. blue offspring
d. A and B
e. A, B, and C
Biology
1 answer:
Alex Ar [27]3 years ago
6 0

Answer:

Blue offspring only

Explanation:

If A blue budgie is crossed with a white budgie.

i.e yyBB or yyBb × yybb

let use yyBb for blue budgie,so we have; yB, yb, yB, yb representing the columns on the horizontal rows of the punnet square.

on the other hand, in white budgie yybb, we will have yb, yb, yb, yb representing the rows on the vertical column of the punnet square.

if a dihybrid cross occurs among these representative, all progeny in the punnet square will be yyBb, showing that they are all Blue offspring only.

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