Principles of Biology
Principles of Biology
2nd Edition
ISBN: 9781259875120
Author: Robert Brooker, Eric P. Widmaier Dr., Linda Graham Dr. Ph.D., Peter Stiling Dr. Ph.D.
Publisher: McGraw-Hill Education
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Chapter 14, Problem 10TY
Summary Introduction

Introduction:

A change in the number of chromosomes is called aneuploidy. If there is an extra chromosome it is called a trisomy and if there is a chromosome less, then it is called a monosomy.

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Which of the following processes leads to aneuploidy, the condition of having too many or too few copies of a particular chromosome? Select all that apply.     Nondisjunction of chromosomes during mitosis   Nondisjunction of chromosomes during meiosis   Proper separation of chromosomes during mitosis   Proper separation of chromosomes during meiosis
Crossing over (mark all that apply): O produces new assortments of maternal and paternal chromosomes results in new gene combinations on chromosome is considered a misdemeanor in Utah, Arizona, Alabama, Arkansas, Mississippi and South Carolina occurs during Prophase I of meiosis occurs during Anaphase I of meiosis occurs during Prophase 2 of meiosis and increases genetic diversity
Polyploid organisms of a normally diploid species are often sterile because: tetraploids are not sterile some of the chromosomes cannot synapse during mitosis none of the chromosomes can synapse during meiosis all the homologous chromosomes attempt to synapse together during meiosis
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