Sexual reproduction involves crossing-over to mix up genes. Is this a good thing or a bad thing? In the discussion this week explain one pro and one con to crossing-over. Overall, what is your opinion of crossing-over? Can evolution occur without it? (Min. 50 words)

Sexual reproduction involves crossing-over to mix up genes. Is this a good thing or a bad thing? In the discussion this week explain one pro and one con to crossing-over. Overall, what is your opinion of crossing-over? Can evolution occur without it? (Min. 50 words)

Human Heredity: Principles and Issues (MindTap Course List)

11th Edition

ISBN:9781305251052

Author:Michael Cummings

Publisher:Michael Cummings

Chapter7: Development And Sex Determination

Section: Chapter Questions

Problem 9QP

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Sexual Motivation

Sexual motivation refers to a person's overall desire for sexual activity. It is an unusual motivation. Generally, among lower animals, the term 'drive' is commonly referred to as sexual motivation. It means a certain internal force drags the animal to be involved in reproductive behavior. On the contrary, humans are not simply driven by any internal force; rather, the sexual motivation in humans is due to several factors such as biological (hormones, genes), environmental (familial upbringing, chemical exposure) and physiological factors (culture, desire) which further determine engagement in sexual activities.

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