Life: The Science of Biology
11th Edition
ISBN: 9781319010164
Author: David E. Sadava, David M. Hillis, H. Craig Heller, Sally D. Hacker
Publisher: W. H. Freeman
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Chapter 37.3, Problem 3R
Summary Introduction
To review:
The ways by which fully fertile apomictic plants can be obtained.
Introduction:
Apomixis may be defined as the development of the seeds in the plant without the occurrence of the sexual reproduction. The events of fertilization and meiosis do not take place and the maternal ovular tissues form the embryo.
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In the moss Polytrichum commune, the haploidchromosome number is 7. A haploid male gametefuses with a haploid female gamete to form a diploid cell that divides and develops into the multicellular sporophyte. Cells of the sporophyte thenundergo meiosis to produce haploid cells calledspores. What is the probability that an individualspore will contain a set of chromosomes all ofwhich came from the male gamete?
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Use the passage to answer the question.
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D. The spores inherit mutations as a result of mitosis.
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