in sweet peas, the allele P is needed for color expression (pp results in no color). the precise color expressed is determined by the alleles B(red) and b (blue). what are the genotypes and phenotpyes of the progeny for the following cross: PPBb x Ppbb. List the ratios of genotpyes and phenotypes of the progeny

Concepts of Biology
1st Edition
ISBN:9781938168116
Author:Samantha Fowler, Rebecca Roush, James Wise
Publisher:Samantha Fowler, Rebecca Roush, James Wise
Chapter8: Patterns Of Inheritance
Section: Chapter Questions
Problem 2ACQ: Figure 8.10 In pea plants, purple flowers (P) are dominant to white (p), and yellow peas (Y) are...
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in sweet peas, the allele P is needed for color expression (pp results in no color). the precise color expressed is determined by the alleles B(red) and b (blue). what are the genotypes and phenotpyes of the progeny for the following cross: PPBb x Ppbb.

List the ratios of genotpyes and phenotypes of the progeny

Expert Solution
Step 1

As per the question,

P_B_ = red

P_bb = blue

ppB_, ppbb = colourless

 

Step 2

PPBb × Ppbb

Gametes Pb pb
PB PPBb red PpBb red
Pb PPbb blue Ppbb blue
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