Campbell Essential Biology with Physiology (6th Edition)
6th Edition
ISBN: 9780134711751
Author: Eric J. Simon, Jean L. Dickey, Jane B. Reece
Publisher: PEARSON
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Textbook Question
Chapter 8, Problem 18BS
As described in the Biology and Society section, some species (including some endangered species) have been shown to be capable of reproduction via parthenogenesis, without participation of a mate. What implications might this have on efforts to repopulate endangered species? What drawbacks might a parthenogenesis program have on the well-being of the species it targets?
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if an endangered species can reproduce by parthenogenesis, what Implications might this have on efforts to repopulate that species? How might a parthenogenesis program harm such a species?
Some animals in captivity have reproduced without the need for a mate in a process called parthenogenesis. Examples include boas, pythons, bonnethead sharks, and komodo dragons. Initially, scientists thought this occurred because the animals were kept in optimal conditions for reproduction, but lacked access to a mate. However, scientists were surprised to discover that some species in the wild with access to mates also reproduce through parthenogenesis. An example is the pit-viper. Compare and contrast the processes of asexual reproduction through parthenogenesis and sexual reproduction for an animal such as the python.
Describe the processes of
i. asexual reproduction through parthenogenesis ii. sexual reproduction
2. Describe two pros and two cons of each form of reproduction. Explain each one.
The twofold cost of sex model by John Mynard Smith explains how -
A. asexual females can become predominant in a population.
B. anisogamy results in sexual reproduction.
C. sexual individuals can produce genetically variant offspring.
D. asexual females invest as much in offspring as the sexual females.
Chapter 8 Solutions
Campbell Essential Biology with Physiology (6th Edition)
Ch. 8 - Which of the following is not a function of...Ch. 8 - In what sense are the two daughter cells produced...Ch. 8 - Prob. 3SQCh. 8 - A biochemist measures the amount of DNA in cells...Ch. 8 - Which two phases of mitosis are essentially...Ch. 8 - Complete the following table to compare mitosis...Ch. 8 - If an intestinal cell in a dog contains 78...Ch. 8 - Prob. 8SQCh. 8 - Prob. 9SQCh. 8 - A diploid body (somatic) cell from a fruit fly...
Ch. 8 - Prob. 11SQCh. 8 - Prob. 12IMTCh. 8 - Prob. 13IMTCh. 8 - Prob. 14IMTCh. 8 - A mule is the offspring of a horse and a donkey. A...Ch. 8 - Prob. 16PSCh. 8 - Interpreting Data The graph in the right hand...Ch. 8 - As described in the Biology and Society section,...Ch. 8 - Prob. 19BSCh. 8 - Prob. 20BSCh. 8 - Prob. 21BS
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