NEET BIOLOGY

REPRODUCTION

REPRODUCTION IN ORGANISMS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Cells that have pairs of chromosomes are called ____
A
diploid cells
B
haploid cells
C
zygotes
D
homologous chromosomes
Explanation: 

Detailed explanation-1: -A diploid cell has two complete sets of chromosomes. Most cells in humans are diploid, comprising 23 chromosome pairs, so 46 chromosomes in total. This is 22 pairs of autosomes and a pair of sex chromosomes. One copy of each chromosome pair came from the individual’s mother and the other from the individual’s father.

Detailed explanation-2: -Definition. A cell containing two copies of each chromosome is referred to as a ‘diploid cell’; human somatic cells are diploid: they contain 46 chromosomes, 22 pairs of autosomes and a pair of sex chromosomes.

Detailed explanation-3: -From The School of Biomedical Sciences Wiki. Diploid cells, or somatic cells, contain two complete copies of each chromosome within the cell nucleus. The two copies of one chromosome pair up and are called homologous chromosomes.

Detailed explanation-4: -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).

Detailed explanation-5: -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.

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