Concept explainers
Introduction:
The reproduction can be defined as the process through which the living organisms produce new offspring. One of the fundamental features of life is reproduction. There are two different forms of reproduction, namely- asexual reproduction and sexual reproduction.

Answer to Problem 1MCQ
Correct answer:
The unique feature of the sexual reproduction is its ability to produce different genetic combinations. Therefore, option (c) is correct.
Explanation of Solution
Reason for the correct statement:
The sexual reproduction involves two different parents. Each of the parents produces gametes, which are formed by the process known as meiosis. The gametes fuse to form a zygote. The genetic characteristics of the zygote are the combination of both the parents. Unlike, in asexual reproduction, where the offspring are genetically identical to the parent as well as siblings, the offspring in sexual reproduction are genetically different.
Option (c) is given as “the ability to generate new genetic combinations”.
As, “the offspring are formed by the fusion of the male and female gamete, the sexual reproduction leads to the production of new genetic combinations”, is the right answer.
Hence, option (c) is correct.
Reasons for the incorrect statements:
Option (a), is given as “the ability of a cell to divide”.
The cell division can take place through the asexual reproduction. Hence, it is a wrong answer.
Option (b), is given as “the production of offspring”.
The offspring are also produced by the asexual reproduction also, so it is not a unique feature of sex. Hence, it is a wrong answer.
Option (d), is given as “all of the above are correct”.
The cell division and the production of offspring can take place through the asexual reproduction also. Hence, it is a wrong answer.
Hence, options (a), (b), and (d), are incorrect.
The sexual reproduction involves the fusion of male and female gametes, which are formed by the process of meiosis. So, the genetic characteristics of the zygote formed by the sexual reproduction are combination of the characteristics of both the parents.
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Chapter 9 Solutions
Biology: Concepts and Investigations
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