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26 Apr 2019
In the parakeet, two unlinked autosomal gene loci produce feather pigment. Allele B at one locus produces a blue pigment. Allele Y at the other locus produces a yellow pigment. Recessive, loss-of-function alleles exist at each locus which prevent their respective pigments from forming properly. Two green parakeets are mated and produce green, blue, yellow and white progeny. Based on this information, explain the inheritance of feather coloration in these parakeets including:
a. the parental genotypes
b. the general genotypic formulae for green, blue, yellow, and white parakeets
c. the expected phenotypic ratio of offspring from this type of parental cross.
In the parakeet, two unlinked autosomal gene loci produce feather pigment. Allele B at one locus produces a blue pigment. Allele Y at the other locus produces a yellow pigment. Recessive, loss-of-function alleles exist at each locus which prevent their respective pigments from forming properly. Two green parakeets are mated and produce green, blue, yellow and white progeny. Based on this information, explain the inheritance of feather coloration in these parakeets including:
a. the parental genotypes
b. the general genotypic formulae for green, blue, yellow, and white parakeets
c. the expected phenotypic ratio of offspring from this type of parental cross.
2
answers
0
watching
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Jamar FerryLv2
27 Apr 2019
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