EBK BIOLOGY
EBK BIOLOGY
5th Edition
ISBN: 8220100667978
Author: Maier
Publisher: PEARSON
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Chapter 12, Problem 4LTB
Summary Introduction

Introduction:

Reproductive isolation can be defined as when the environment may carry out an outside barrier to the reproduction, such as a mountain range or river. Pre-fertilization reproductive barriers disturb the jasmine crosses. Reproductive barriers are commonly divided into pre and post-fertilization barriers depending on whether fertilization happens normally.

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How does the sexual life cycle increase the genetic variation in a species? By increasing gene stability By allowing fertilization By allowing crossing over By conserving chromosomal gene order By decreasing mutation frequency
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Some organisms are capable of asexual or sexual reproduction. Under favorable conditions, reproduction proceeds asexually. When conditions become more stressful reproduction switches to a sexual mode. Why?   Question options:   Sexual reproduction is simple and more rapid allowing larger numbers of offspring to be produced.   Sexual reproduction requires two separate individuals, who can mutually provide nutrient support during stress.   Sexual reproduction produces individuals with new combinations of recombined chromosomes increasing diversity.   Asexual reproduction requires more energy.
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The Human Reproductive System; Author: Professor Dave Explains;https://www.youtube.com/watch?v=TucxiIB76bo;License: Standard YouTube License, CC-BY