Campbell Biology Plus Masteringbiology
10th Edition
ISBN: 9780321775849
Author: Jane B. Reece, Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Robert B. Jackson
Publisher: PEARSON
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Textbook Question
Chapter 24, Problem 6TYU
Plant species A has a diploid chromosome number of 12. Plaut species B has a diploid number of 16. A new species, C, arises as an allopolyploid from A und B. The diploid number for species C would probably be
(A) 14.
(B) 16.
(C) 28.
(D) 56.
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Plant species A has a diploid number of 8. Plant species B has a diploid number of 4. A new species, C, arises as an allopolyploid from A and B. The diploid number for species C would probably be..
Multiple choice (one answer is correct)
a.8
b.6
c.4
d.12
e.The diploid number can be any even number between 4 and 8
Species A has 2 n = 10 chromosomes. Species B has 2 n = 40 chromosomes. On average, will two randomly selected genes from species A be more likely, less likely, or equally likely to assort independently than two randomly selected genes from species B? Explain your reasoning.
Some species undergo polyploidy, which is a multiplication of their chromosomes. That is, they contain full chromosomes from each parent. How could speciation affect a polyploid organism?
A.
The polyploid organisms may experience gametic isolation.
B.
The polyploid organisms may experience behavioral isolation.
C.
The polyploid organisms may experience geographic isolation.
D.
The polyploid organisms would not be affected by speciation.
Chapter 24 Solutions
Campbell Biology Plus Masteringbiology
Ch. 24.1 - Prob. 1CCCh. 24.1 - WHAT IF? Suppose two bird species live in a...Ch. 24.2 - Summarize key differences between allopatric and...Ch. 24.2 - Prob. 2CCCh. 24.2 - WHAT IF? Is allopatric speciation more likely to...Ch. 24.2 - MAKE CONNECTIONS Review the process of meiosis in...Ch. 24.3 - 1. What are hybrid zones, and why can they be...Ch. 24.3 - WHAT IF? Consider two species that diverged while...Ch. 24.4 - Speciation can occur rapidly between diverging...Ch. 24.4 - Prob. 2CC
Ch. 24.4 - Prob. 3CCCh. 24 - Explain the role of gene flow in the biological...Ch. 24 - Can factors that cause sympatric speciation also...Ch. 24 - What factors can support the long-term stability...Ch. 24 - Is speciation something that happened only in the...Ch. 24 - The largest unit within which gene flow can...Ch. 24 - Prob. 2TYUCh. 24 - Prob. 3TYUCh. 24 - Prob. 4TYUCh. 24 - Which of the following factors would not...Ch. 24 - Plant species A has a diploid chromosome number of...Ch. 24 - Prob. 7TYUCh. 24 - SCIENTIFIC INQUIRY DRAW IT In this chapter, you...Ch. 24 - Prob. 9TYUCh. 24 - Prob. 10TYUCh. 24 - WRITE ABOUT A THEME: INFORMATION In sexually...Ch. 24 - Prob. 12TYU
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