Biology: Science for Life with Physiology (5th Edition)
5th Edition
ISBN: 9780321922212
Author: Colleen Belk, Virginia Borden Maier
Publisher: PEARSON
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Question
Chapter 22, Problem 1LTB
Summary Introduction
To describe:
The difference between sexual and asexual reproduction.
Introduction:
The reproduction can be defined as the process of producing identical offspring. The reproduction can be either sexual or asexual. The sexual mode of reproduction involves two individuals (male and female) and asexual reproduction involves a single individual.
Expert Solution & Answer
Explanation of Solution
The key differences between asexual and sexual reproduction is given below:
Asexual | Sexual |
It occurs in simpler and primitive organisms. | It occurs in complex organisms. |
It is uniparental. | It is generally bi-parental. |
No gametes are formed occurs. Cells are never haploid. | The haploid gametes are required. |
As gametes are not present, gametogenesis is also not required. | The gametogenesis is required to produce haploid cells. |
Fertilization/ fusion of the gametes is absent. | Fertilization/ fusion of the gametes is present. |
Occurs by mitotic cell division. | Involves meiotic cell division. |
The daughter organisms are genetically identical to parent (clones). | The daughter organisms are not genetically identical to parent. |
The multiplication occurs rapidly. | The multiplication cannot occur rapidly. As gamete formation and fusion takes time. |
No genetic variation is found, hence, no evolution. | The |
Conclusion
The asexual reproduction is uniparental mode of reproduction, in which organism are produced by mitotic division and are genetically identical to the parents.
The sexual mode of reproduction requires two parents of opposite sex to produce the genetically different offspring.
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Chapter 22 Solutions
Biology: Science for Life with Physiology (5th Edition)
Ch. 22 - Prob. 1LTBCh. 22 - Describe the male and female reproductive...Ch. 22 - Describe gametogenesis in males and females.Ch. 22 - A sperm cell follows which path? seminiferous...Ch. 22 - An egg cell that is not fertilized follows which...Ch. 22 - Which of the following is mismatched? urethra:...Ch. 22 - Gametogenesis _________ . A. begins at puberty in...Ch. 22 - Prob. 8LTBCh. 22 - Prob. 9LTBCh. 22 - Prob. 10LTB
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