Biology: How Life Works - Standalone book
2nd Edition
ISBN: 9781464126093
Author: James Morris, Daniel Hartl, Andrew Knoll, Robert Lue, Melissa Michael, Andrew Berry, Andrew Biewener, Brian Farrell, N. Michele Holbrook
Publisher: W. H. Freeman
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Chapter 15, Problem 6QC
Summary Introduction
To determine:
In which meiotic division of which parent did the nondisjunction takes place to produce a baby with sex constitution XYY as both the parents have normal sex chromosomes.
Introduction:
Meiosis is a process of cell division in which four haploid daughter cells are produced. It is also known as a reductional division because the daughter cells receive the reduced number of chromosomes. Meiosis is important for the reproduction because it produces haploid gametes. Meiosis occurs in two stages meiosis I and meiosis II. The meiosis stages are also divided into four phases: prophase, metaphase, anaphase and telophase. The meiosis II is similar to that of mitosis.
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