Biology
Grade-9
Easy
Question
Chromosomes are classified into different types based on the position of _____________ that separates the two arms.
- Chromatids
- Centromere
- Telomere
- Chromomere
Hint:
Centromere
The correct answer is: Centromere
Chromosomes can be classified on the basis of the position of the centromere. These types are metacentric, sub-metacentric, telocentric, and acrocentric.
- A chromosome that has a terminal centromere is known as a telocentric chromosome.
- Humans do not possess telocentric chromosomes. The house mouse karyotype contains only telocentric chromosomes.
- The chromosome has one arm, and is ‘i-shaped’ during anaphase.
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