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Biology: The Unity and Diversity o...

0th Edition
STARR
ISBN: 9780357093795

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FindFindarrow_forward

Biology: The Unity and Diversity o...

0th Edition
STARR
ISBN: 9780357093795

Textbook Problem

Figure 12-7 shows how meiosis in a cell with three pairs of homologous chromosomes produces eight unique gametes (crossovers aside). Use the same technique to determine how many unique gametes can be produced by a cell that has four pairs of homologous chromosomes.

A human female can release about 350 eggs during her reproductive years. What is the chance that she would generate the same gamete twice in her lifetime?

Summary Introduction

To determine: how many unique gametes can be produced by a cell that has four pairs of homologous chromosome.

Concept introduction:

Walter Stanborough Sutton (American geneticist) has provided great evidence for Mendel's principle of independent assortment. During metaphase, he saw a random positioning of each chromosome at the midline. The chromosomes formed in the daughter cell will be a combination of their parental traits but every chromosome was independent of each other than that of their paternal and maternal side. At the time of chromosomal segregation, each daughter chromosomes are formed with unique combinations.

Summary Introduction

To determine: The chance that a human female would generate the same gametes twice in her lifetime.

Concept introduction:

Walter Stanborough Sutton (American geneticist) has provided great evidence for Mendel's principle of independent assortment. During metaphase, he saw a random positioning of each chromosome at the midline. The chromosomes formed in the daughter cell will be a combination of their parental traits but every chromosome was independent of each other than that of their paternal and maternal side. At the time of chromosomal segregation, each daughter chromosomes are formed with unique combinations.

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