# More Crosses with Pea Plants: The Principle of Independent Assortment Consider the following cross in pea plants, in which smooth pea shape is dominant to wrinkled, and yellow pea color is dominant to green. A plant with smooth yellow peas is crossed to a plant with wrinkled green peas. The offspring produced peas that were all smooth and yellow. What are the genotypes of the parents? What are the genotypes of the offspring?

### Human Heredity: Principles and Iss...

11th Edition
Michael Cummings
Publisher: Cengage Learning
ISBN: 9781305251052

Chapter
Section

### Human Heredity: Principles and Iss...

11th Edition
Michael Cummings
Publisher: Cengage Learning
ISBN: 9781305251052
Chapter 3, Problem 16QP
Textbook Problem
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## More Crosses with Pea Plants: The Principle of Independent AssortmentConsider the following cross in pea plants, in which smooth pea shape is dominant to wrinkled, and yellow pea color is dominant to green. A plant with smooth yellow peas is crossed to a plant with wrinkled green peas. The offspring produced peas that were all smooth and yellow. What are the genotypes of the parents? What are the genotypes of the offspring?

Summary Introduction

To predict: The genotype of the parents producing all yellow and smooth seeds.

Introduction: The law of independent assortment was given in a dihybrid cross which is the cross between the alleles of two pairs of contrasting characters. The alleles produced by each character are independent to combine with the alleles of the other character. This independent sorting of the alleles irrespective of the dominant or the recessive trait is defined as the law of independent assortment.

### Explanation of Solution

The yellow color of the seed and smooth seed shape are the dominant characters while the green color and the wrinkled shape are the recessive characters for the seed of the pea plant. The gametes for yellow color are “YY”, the gametes for green color are “yy”, the gametes for smooth shape are “RR” and the gametes for the wrinkled seed shape are “rr”.

Therefore, the gametes produced by the plant with yellow and smooth seed are YR and the gamete produced by the plant with green and wrinkled seed is “yr” The cross between the parents producing all yellow and smoot...

Summary Introduction

To determine: The genotype of the offsprings that are all yellow and smooth seeds.

Introduction: The law of independent assortment is the third law of Mendelian genetics. It was given by performing a dihybrid cross which is the cross between the alleles of two pairs of contrasting characters

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