Question

You are studying a gene that controls plant height in a particular plant. The wild-type tall allele (sh+) is dominant to the mutant short (sh) allele. However the sh+ allele is only 45% penetrant. You cross two plants that are heterozygous at this locus. What phenotypic progeny classes do you expect and at what frequencies (assume the penetrance of sh+ applies equally to both homozygotes and heterozygotes)?

Name: you are studying a gene that controls plant height in a particular plant the wild type tall allele sh is dominant to the mutant short sh allele however the sh allele is only 45 penetrant you 42334
Uploaded: 2023-08-01T06:14:36-08:00
Duration: 3 min 37 s
Channel: Adi S
Description: you are studying a gene that controls plant height in a particular plant the wild type tall allele sh is dominant to the mutant short sh allele however the sh allele is only 45 penetrant you 42334

          You are studying a gene that controls plant height in a particular plant. The wild-type tall allele (sh+) is dominant to the mutant short (sh) allele. However the sh+ allele is only 45% penetrant. You cross two plants that are heterozygous at this locus. What phenotypic progeny classes do you expect and at what frequencies (assume the penetrance of sh+ applies equally to both homozygotes and heterozygotes)?

Added by Kristen M.

Biology for AP Courses

Julianne Zedalis, John Eggebrecht

Instant Answer

Solved by Expert Adi S

08/01/2023

Step 1

Since they are both heterozygous at the locus controlling plant height, their genotypes would be sh+/sh. Show more…

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You are studying a gene that controls plant height in a particular plant. The wild-type tall allele (sh+) is dominant to the mutant short (sh) allele. However the sh+ allele is only 45% penetrant. You cross two plants that are heterozygous at this locus. What phenotypic progeny classes do you expect and at what frequencies (assume the penetrance of sh+ applies equally to both homozygotes and heterozygotes)?