AP BIOLOGY

CELL DIVISION

MEIOSIS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Human ____ are diploid, and human ____ are haploid.
A
sex chromosomes ____ autosomes
B
autosomes ____ sex chromosomes
C
somatic cells ____ gametes
D
gametes ____ somatic cells
Explanation: 

Detailed explanation-1: -Human gametes (egg and sperm cells) are haploid, containing 22 autosomes and one sex chromosome.

Detailed explanation-2: -In humans, somatic cells are diploid, meaning they contain two sets of chromosomes, one inherited from each parent. DNA mutations in somatic cells can affect an individual, but they cannot be passed on to their offspring.

Detailed explanation-3: -Somatic cells are any cells except the egg and sperm cells. They are not gamete cells. The somatic cells are diploid – comprising two sets of chromosomes, which are inherited one each from a parent.

Detailed explanation-4: -Every cell in the human body contains 23 pairs of such chromosomes; our diploid number is therefore 46, our ‘haploid’ number 23. Of the 23 pairs, 22 are known as autosomes. The 23rd pair is made up of the sex chromosomes, called the ‘X’ and ‘Y’ chromosome.

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