science
Grade-10
Easy
Question
There are _____ chromosomes in human beings.
- 23 pairs
- 44 pairs
- 22 pairs
- 46 pairs
Hint:
46 pairs of chromosomes are split after mitosis.
The correct answer is: 23 pairs
- The DNA or deoxyribonucleic acid is the genetic material for the living organisms except few viruses
- The DNA contains the units of heredity called genes
- The DNA is coiled into structures called as chromosomes
- Each species has a specific number of chromosomes
- The number of chromosomes in humans (Homo sapiens) is 23 pairs
- The chromosomes always occur in pairs
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