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Last update by Shanal on 11/06/2013
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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, or YYBb is green; yyBB or yyBb is blue; YYbb or Yybb is yellow; and yybb is white.

41) A blue budgie is crossed with a white budgie. Which of the following results is not possible?

A) Green offspring only

B) Yellow offspring only

C) Blue offspring only

D) Green and yellow offspring

E) a 9:3:3:1 ratio

Answer:

D) Green and yellow offspring

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