In a snail, an autosomal allele causing a banded shell (b) is recessive to the allele...

In a snail, an autosomal allele causing a banded shell (b) is recessive to the allele for unbanded shell (B). Genes at a different locus on the same chromosome determine the background color of the shell; here, yellow (y) is recessive to brown (Y). The genes for shell banding and background color have a recombination frequency of 0.25. A banded, yellow snail is crossed with a homozygous brown, unbanded snail. The F1 are then crossed with banded, yellow snails (a testcross). What proportion of progeny will be banded and brown?

Expert Solution

Answer :

Proportion of progeny banded and brown = 12.5%

gladiator answered 2 years ago

In Drosophila , a recessive autosomal allele, ebony (e) produces a black body colour when homozygous....

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1. you are evaluating autosomal recessive condition A (alleles A and a) and B (alleles B...

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i) Researchers studying a population of tiger puppies identified a recessive single gene allele causing albino...

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The black color cost in hamsters is due to a dominant gene (B).. A recessive allele...

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Black body (b) and purple eye (pr) are recessive autosomal mutations in Drosophila. Bridges crossed b/b...

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Scalloped (sd) is an X linked recessive and ebony (e) is an autosomal recessive mutation. What...

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