Campbell Biology in Focus
Campbell Biology in Focus
3rd Edition
ISBN: 9780134710679
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Rebecca Orr
Publisher: PEARSON
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Chapter 22, Problem 1TYU

The largest unit within which gene flow can readily occur is a

  1. A.    population.
  2. B.     species.
  3. C.     genus.
  4. D.    hybrid.
Expert Solution & Answer
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Summary Introduction

Introduction:

Species is the particular group of organisms that share similar trait with each other and are able to produce viable offspring when they mate with each other.

Answer to Problem 1TYU

Correct answer:

The largest unit within which gene flow can readily occur is the species. Therefore, option (B) is correct.

Explanation of Solution

Reason for the correct statement:

Species is the highest group in which the production of viable offspring is possible that aids in gene flow.

Option (B) is given as “species”.

As “the largest unit within which gene flow can readily occur is the species” it is the right answer.

Hence, option (B) is correct.

Reason for the incorrect statement:

Option (A) is given as “population”.

Population involves the group of different genus that are not able to interbreed. So, it is a wrong answer.

Option (C) is given as “genus”.

Genus is the group of organism that share similar traits but might not be able to produce viable offsprings. So, it is a wrong answer.

Option (D) is given as “hybrid”.

Hybrid is the group of organism that shares the traits of two different species of the organism. So, it is a wrong answer.

Hence, options (A), (C), and (D) are incorrect.

Conclusion

The largest unit within which gene flow can readily occur is the species.

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Students have asked these similar questions
Two parents, who are thought to be different species, mate and produce viable hybrid offspring. When two of these hybrids mate, their offspring are not viable.  What is the BEST interpretation of this data?   A. The original parents are the same species because they can breed together.   B. The original parents are the same species because they can breed together and produce viable offspring.   C. The original parents are not the same species because they produce hybrids that impair the species’ development or survival in its environment.   D. The original parents are not the same species because they produce hybrids that can have reduced viability and fertility when they mate.
The biological species concept emphasizes whether populations   a. look the same.   b. have similar biochemical pathways.   c. can have gene flow between them.   d. share common ancestry.   e. have similar ecological requirements.
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