AP BIOLOGY

ANIMAL REPRODUCTION AND DEVELOPMENT

SEXUAL REPRODUCTION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
There are multiple answers to this question. What are sex cells?
A
gametes
B
sperm
C
eggs
D
haploid cells
Explanation: 

Detailed explanation-1: -They are also referred to as sex cells. Female gametes are called ova or egg cells, and male gametes are called sperm. Gametes are haploid cells, and each cell carries only one copy of each chromosome.So only the haploid cells resulting from meiosis can be called sex cells in this case.

Detailed explanation-2: -Haploid refers to the presence of a single set of chromosomes in an organism’s cells. Sexually reproducing organisms are diploid (having two sets of chromosomes, one from each parent). In humans, only the egg and sperm cells are haploid.

Detailed explanation-3: -Haploid describes a cell that contains a single set of chromosomes. The term haploid can also refer to the number of chromosomes in egg or sperm cells, which are also called gametes. In humans, gametes are haploid cells that contain 23 chromosomes, each of which a one of a chromosome pair that exists in diplod cells.

Detailed explanation-4: -During fertilisation, an egg and sperm (gametes) combine to form a cell that contains a complete complement of DNA. In humans, these gametes are haploid as they have one copy of each chromosome, contributed from each parent.

Detailed explanation-5: -Haploid cells contain only one set of Chromosomes (n). Diploid, as the name indicates, contains two sets of chromosomes (2n). Haploid cells are formed by the process of meiosis. Diploid cells undergo mitosis.

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