Consider the following statements about "Meiosis": 1. It involves a single division of the nucleus. 2. It produces four new cells. 3. It is involved in the formation of gametes. Which of the statements given above are correct?

The correct option is (c). Explanation Meiosis is a specialized form of cell division that reduces the chromosome number by half, resulting in the production of haploid daughter cells. It is the fundamental process underlying sexual reproduction. - Statement 1 is Incorrect: Unlike mitosis, which involves a single nuclear division, meiosis involves two sequential cycles of nuclear and cell division, known as Meiosis I and Meiosis II. Despite having two divisions, the DNA is replicated only once before Meiosis I. - Statement 2 is Correct: At the end of Meiosis II, four haploid daughter cells are produced from a single diploid parent cell. In contrast, mitosis results in only two genetically identical daughter cells. - Statement 3 is Correct: Meiosis occurs in the germ cells of sexually reproducing organisms to produce gametes (sperm and ova in animals; pollen and egg cells in plants). This reduction in chromosome number is essential so that the diploid number is restored upon fertilization. Key Takeaway: Meiosis is defined by a double nuclear division that produces four haploid gametes, distinguishing it from mitosis which produces two diploid somatic cells.

NCERT Class 9 Science — Chapter 1: The fundamental unit of life

mcqeasy

Consider the following statements about "Meiosis":

It involves a single division of the nucleus.
It produces four new cells.
It is involved in the formation of gametes.

Which of the statements given above are correct?

Official previous-year question

Verified 1 Aug 2026.

Options

A1 and 2 only
B2 only
C2 and 3 only
D1, 2 and 3

Did you get this right?

Solution

The correct option is (c).

Explanation

Meiosis is a specialized form of cell division that reduces the chromosome number by half, resulting in the production of haploid daughter cells. It is the fundamental process underlying sexual reproduction.

Statement 1 is Incorrect: Unlike mitosis, which involves a single nuclear division, meiosis involves two sequential cycles of nuclear and cell division, known as Meiosis I and Meiosis II. Despite having two divisions, the DNA is replicated only once before Meiosis I.
Statement 2 is Correct: At the end of Meiosis II, four haploid daughter cells are produced from a single diploid parent cell. In contrast, mitosis results in only two genetically identical daughter cells.
Statement 3 is Correct: Meiosis occurs in the germ cells of sexually reproducing organisms to produce gametes (sperm and ova in animals; pollen and egg cells in plants). This reduction in chromosome number is essential so that the diploid number is restored upon fertilization.

Key Takeaway: Meiosis is defined by a double nuclear division that produces four haploid gametes, distinguishing it from mitosis which produces two diploid somatic cells.

Your note

More from Chapter 1: The fundamental unit of life

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A plant cell is placed in a hypertonic solution. Which of the following phenomena is most likely to occur?

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The correct option is (c).

Explanation

Statement 1 is Incorrect: Unlike mitosis, which involves a single nuclear division, meiosis involves two sequential cycles of nuclear and cell division, known as Meiosis I and Meiosis II. Despite having two divisions, the DNA is replicated only once before Meiosis I.
Statement 2 is Correct: At the end of Meiosis II, four haploid daughter cells are produced from a single diploid parent cell. In contrast, mitosis results in only two genetically identical daughter cells.
Statement 3 is Correct: Meiosis occurs in the germ cells of sexually reproducing organisms to produce gametes (sperm and ova in animals; pollen and egg cells in plants). This reduction in chromosome number is essential so that the diploid number is restored upon fertilization.

Key Takeaway: Meiosis is defined by a double nuclear division that produces four haploid gametes, distinguishing it from mitosis which produces two diploid somatic cells.