BIOLOGY  VOL. II
BIOLOGY VOL. II
16th Edition
ISBN: 9781308795317
Author: Raven
Publisher: Mcgraw-Hill/Create
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Chapter 21, Problem 1U

Artificial selection is different from natural selection because

a. artificial selection is not capable of producing large changes.

b. artificial selection does not require genetic variation.

c. natural selection cannot produce new species.

d. breeders (people) choose which individuals reproduce based on desirability of traits.

Expert Solution & Answer
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Summary Introduction

Introduction:

The process by which those organisms that have favorable variations to their environment are selected in order to survive and reproduce is known as Natural selection. Artificial selection is the process in which the organisms are selected by the breeder to produce desirable traits in the offspring’s.

Answer to Problem 1U

Correct answer:

The human selects the organism that needs to reproduce on the basis of desirability of the traits through artificial selection. Therefore, option (d) is correct.

Explanation of Solution

Reason for correct statement:

Artificial selection is a man tailored mechanism that mainly occurs in the domestic population. It allows only selected traits to be inherited by the offspring. The result of the artificial selection is predetermined.

Option (d) is given as “breeders (people) choose which individuals reproduce based on desirability of traits”.

As, “in artificial selection breeder select the individual to reproduce on the basis of desired traits,” is the right answer.

Hence, option (d) is correct.

Reasons for the incorrect statements:

Option (a), is given as “artificial selection is not capable of producing large changes”.

Artificial selection tends to bring large changes. Hence, it is a wrong answer.

Option (b), is given as “artificial selection does not require genetic variation”.

The genetic variation is required for the artificial selection to occur. Hence, it is a wrong answer.

Option (c), is given as “natural selection cannot produce new species”.

The process of natural selection leads to the development of new species. Hence, it is a wrong answer.

Hence, options (a), (b), and (c), are incorrect.

Conclusion

The organisms that survive and reproduce are selected by the natural process. Humans select the organisms that need to reproduce with the desirable traits through the process of artificial selection.

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Students have asked these similar questions
Which of the following is an example of stabilizing selection?a. Over time, Equus developed strength, intelligence, speed,and durable grinding teeth.b. British land snails mainly have two different phenotypes.c. Swiss starlings usually lay four or five eggs, therebyincreasing their chances of more offspring.d. Drug resistance increases with each generation; theresistant bacteria survive, and the nonresistant bacteriaget killed off.e. All of these are correct
Which of the following best explains the role mutations play in natural selection?A. Most mutations are negative and result in the extinction of the entire speciesB. Mutations may appear for one or two generations, but they usually disappear quickly.C. If the environment changes, an existing organism develops a mutation that will help them to survive.D. Some mutations give individuals an advantage in their environment, allowing them to survive and reproduce.D is my answer is it correct?
1) What does the term Natural Selection mean? Select one: a.The number and relative frequency of alleles present in a particular population. b.The process through which individuals with certain traits tend to produce more surviving offspring that individuals without those traits. c. Any change in the hereditary material of an organism.
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