4.
Which statement is true of both mitosis and meiosis?

Both occur only in reproductive cells.

DNA replication occurs before the division of the nucleus.

Both are involved in asexual reproduction.

The number of chromosomes is reduced by half.
5.
The diagram below represents structures found in a human female.
Which process results in the formation of structure X?

meiosis

cloning

recombination

mitosis
6.
Meiosis is a type of cell division in which germ cells divide to produce haploid cells. Where does meiosis occur?

muscle cells

bone cells

ovary cells

brain cells

DNA replication occurs before the division of the nucleus.
meiosis is the process that results in the formation of structure X in the attached image
Ovary cells.

QUESTION 1:

Before any cell undergoes division; whether meiosis or mitosis, its DNA must be replicated or duplicated in order to ensure that each daughter cell receive the correct number of chromosomes.

This process of DNA replication involves the unwinding of the double-stranded DNA by HELICASE, and the synthesis of a new DNA strand.

QUESTION 2:

The diagram attached displays a female reproductive system showing the fallopian tube where the female gamete (ovum/egg) passes. The egg which is labelled X is produced by the ovary during meiosis.

Meiosis is the cell division that results in daughter cells (gametes) with each having their chromosome number reduced by half. i.e. a diploid (2n) female will produce haploid eggs (n)

QUESTION 3:

Meiosis occurs only in reproductive cells. It is a cell division that gives rise to gametes or sex cells used during reproduction.

Ovary is the female reproductive organ that produces the female gamete (egg). Meiosis occurs in the diploid germ cells of the ovary and results to haploid cells called egg or ovum.

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