The cross of a green budgie and a yellow budgie produces offspring that are 12 green, 4 blue, 13 yellow, and 3 albino. what are the genotypes of the parents?

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20-10-2017
Biology

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The cross of a green budgie and a yellow budgie produces offspring that are 12 green, 4 blue, 13 yellow, and 3 albino. what are the genotypes of the parents?

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underV underV · Answer 1 · 2017-10-27T17:22:24+02:00

underV underV

27-10-2017

Genotypes:
blue: yyBb or yyBB
yellow: Yybb or YYbb
albino: yybb
green: YyBb or YYBB or YyBB or YYBb
32 offspring

The cross between the parents need to be like: Yybb x YyBb
that way, if you follow the table down below, 6/16 will be green (it's the same as saying 12/32); 6/16 are yellow (about the same as 13/32); 2 albinos, and 2 blue offspring (2/16 is the same as 4/32 and close to 3/32).

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