The proportion of the gametophytes that will be A ; B. Introduction: The gametophyte is the sexual phase in the life cycle of plants and algae. It develops sex organs that produce gametes, haploid sex cells that participate in fertilization to form a diploid zygote that has a double set of chromosomes.

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Chapter 3, Problem 17P

a.

Summary Introduction

To determine: The proportion of the gametophytes that will be A ; B.

Introduction: The gametophyte is the sexual phase in the life cycle of plants and algae. It develops sex organs that produce gametes, haploid sex cells that participate in fertilization to form a diploid zygote that has a double set of chromosomes.

b.

Summary Introduction

To determine: The proportion of sporophytes in the next generation that will be A/a ; B/b, if fertilization is random.

Introduction: Saprophytes break down the dead and decaying organic matter into simpler substances that can be taken up and recycled by the plants. Thus they play an essential role in maintaining the ecological balance.

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