EVERYDAY SCIENCE

SCIENCE

GENETIC AND MENDELS LAW OF HEREDITY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
In a gamete there will be.
A
One pair of sex chromosomes
B
Only one sex chromosome
C
No sex chromosomes
D
Only autosomes
Explanation: 

Detailed explanation-1: -Diploid cells undergo division and their number reduces to half, i.e., produce haploid cells having only 23 chromosomes, without any pairs. These cells are also called gametes. Thus, gametes have only one sex chromosome.

Detailed explanation-2: -Meiosis is the process of making gametes, also known as eggs and sperm in most animals. During meiosis, the number of chromosomes is reduced by half, so that each gamete gets just one of each autosome and one sex chromosome. Female mammals make eggs, which always have an X chromosome.

Detailed explanation-3: -A human gamete has one sex chromosome. Human gametes, or sex cells, are haploid cells that contain 23 chromosomes total: 22 autosomes and exactly one sex chromosome. Being haploid, they only contain single chromosomes, rather than pairs.

Detailed explanation-4: -Two of the chromosomes (the X and the Y chromosome) determine your sex as male or female when you are born. They are called sex chromosomes: Females have 2 X chromosomes. Males have 1 X and 1 Y chromosome.

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