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Chapter 14: Mendel and the Gene Idea

Question:
Feather color in budgies is determined by two different genes Y and B, one pigment on the outside and one for the inside of the feather. YYBB, YyBB, or YYBb is green; yyBB or yyBb is blue; YYbb or Yybb is yellow; and yybb is white.

Two blue budgies were crossed. Over the years, they produced 22 offspring, 5 of which were white. What are the most likely genotypes for the two blue budgies?
a. yyBB and yyBB
b. yyBB and yyBb
c. yyBb and yyBb
d. yyBB and yybb
e. yyBb and yybb
Answer:
C: yyBb and yyBb
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Last update by Jianan on 04/11/2013
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Chapter 14  Mendel and the Gene Idea
Chapter 14: Mendel and the Gene Idea
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Free Flashcard From Chapter 14: Mendel and the Gene Idea
Question: Feather color in budgies is determined by two different genes Y and B, one pigment on the outside and one for the inside of the feather. YYBB, YyBB, or YYBb is green; yyBB or yyBb is blue; YYbb or Yybb is yellow; and yybb is white.Two blue budgies were crossed. Over the years, they produced 22 offspring, 5 of which were white. What are the most likely genotypes for the two blue budgies?a. yyBB and yyBBb. yyBB and yyBbc. yyBb and yyBbd. yyBB and yybbe. yyBb and yybb
Answer: C: yyBb and yyBb