If a Mendel's dihybrid cross between two double heterogotes (AaBb  x AaBb), assuming that the dominant allele is completely dominant over the recessive allele, what should be the phenotypic ratio of the progeny?   A. 3:1   B. 9:3:3:1   C. 4:4:4:4   D. 9:3:4

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 9RQ: What is the reason for doing a test cross? a. to identify heterozygous individuals with the dominant...
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If a Mendel's dihybrid cross between two double heterogotes (AaBb  x AaBb), assuming that the dominant allele is completely dominant over the recessive allele, what should be the phenotypic ratio of the progeny?

  A.

3:1

  B.

9:3:3:1

  C.

4:4:4:4

  D.

9:3:4

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