Practicing Success

Target Exam

CUET

Subject

Biology

Chapter

Reproduction in Organisms

Question:

Which of the following is INCORRECT regarding sexual reproduction?

Options:

Sexual reproduction in organisms generally involves the fusion of gametes from two different individuals.

Sexual reproduction is characterised by the fusion (or fertilisation) of the male and female gametes, the formation of zygote and embryogenesis.

Gametogenesis refers to the process of formation of the two types of gametes – male and female.

Gametes are diploid though the parent plant body from which they arise may be either haploid or diploid.

Correct Answer:

Gametes are diploid though the parent plant body from which they arise may be either haploid or diploid.

Explanation:

The correct answer is Option (4)- Gametes are diploid though the parent plant body from which they arise may be either haploid or diploid.

Sexual reproduction involves formation of the male and female gametes, either by the same individual or by different individuals of the opposite sex. These gametes fuse to form the zygote which develops to form the new organism. It is an elaborate, complex and slow process as compared to asexual reproduction. Because of the fusion of male and female gametes, sexual reproduction results in offspring that are not identical to the parents or amongst themselves.

Gametes are diploid though the parent plant body from which they arise may be either haploid or diploid. This statement is incorrect because gametes are typically haploid, not diploid. Gametes are formed through the process of meiosis, which reduces the chromosome number by half, resulting in haploid cells. The fusion of these haploid gametes during fertilization restores the diploid state in the resulting zygote.