Question

Sex determination in human being is ______
a) XY-XX type
b) XX-XO type
c) XX-XY type
d) XO-XX type

Answer 1

Answer:

a) XY-XX type

Explanation:

In the human being, sex determination is XY-XX where male and female have the same number of chromosomes. There are total 46 chromosomes (23 pairs) in human being out of that 44 chromosomes (22 pairs) are the autosomes while one pair is called sex chromosomes. females have a pair of X chromosome but males have one X chromosome and one Y chromosome. The Y chromosome is shorter than the X chromosome. So the arrangement of the chromosomes in the female is (22+XX) while in males, it is (22+XY)

Answer 2

The correct answer is a) XY-XX

Explanation:

• XY represents the males.
• XX represents the females.
• Humans have in total 46 chromosomes (23 pairs) of which 44 are called Autosomes and rest 2 are called Sex Chromosomes (X and Y).
• The genetic representation of a male is shown by: 44+XY.
• The genetic representation of a female is shown by : 44+XX.
• The Sex chromosomes determine the sexuality of the person while the autosomes are responsible for determining the overall development and metabolism of the person.