LIFE SCIENCE

OBJECTIVE LIFE SCIENCE

CELL BIOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
How many chromosomes are in a human somatic cell? Is this a diploid or a haploid?
A
46, Diploid
B
46, Haploid
C
23, Diploid
D
23, Haploid
Explanation: 

Detailed explanation-1: -Most cells in humans are diploid, comprising 23 chromosome pairs, so 46 chromosomes in total.

Detailed explanation-2: -Human somatic cells have 46 chromosomes consisting of two sets of 22 homologous chromosomes and a pair of nonhomologous sex chromosomes. This is the 2n, or diploid, state. Human gametes have 23 chromosomes or one complete set of chromosomes. This is the n, or haploid, state.

Detailed explanation-3: -In humans, 46 chromosomes are arranged in 23 pairs which include 22 pairs of chromosomes known as autosomes. Each chromosomal pair consists of one chromosome inherited from the mother and the other from the father.

Detailed explanation-4: -Humans have 22 pairs of numbered chromosomes (autosomes) and one pair of sex chromosomes (XX or XY), for a total of 46. Each pair contains two chromosomes, one coming from each parent, which means that children inherit half of their chromosomes from their mother and half from their father.

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