GENETICS AND EVOLUTION
GENETIC BASIS OF INHERITANCE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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23
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46
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1
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2
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Detailed explanation-1: -The 23rd pair, the sex chromosomes, differ between males and females. Females have two copies of the X chromosome, while males have one X and one Y chromosome. The 22 autosomes are numbered by size. The other two chromosomes, X and Y, are the sex chromosomes.
Detailed explanation-2: -Both males and females have 22 pairs of autosomes and one pair of sex chromosomes. The male has one X and one Y sex chromosome and the female has two X chromosomes.
Detailed explanation-3: -The first 22 pairs of chromosomes are called autosomes. The 23rd pair of chromosomes are known as the sex chromosomes, because they decide if you will be born male or female.
Detailed explanation-4: -Humans and most other mammals have two sex chromosomes, X and Y, that in combination determine the sex of an individual. Females have two X chromosomes in their cells, while males have one X and one Y.
Detailed explanation-5: -Each sperm cell contains 23 chromosomes : 22 autosomes and one sex chromosome (X or Y).