A) metacentric
B) excentric
C) telocentric
D) apocentric
Correct Answer: C
Solution :
The position of centromere is constant for a particular chromosome. On the basis of its position, the chromosomes are categorised as: (1) Metacentric (2) Submetacentric (3) Acrocentric (4) Telocentric In Metacentric (meta = middle) chromosomes, the centromere is median in position, thus chromosomes appear V-shaped during anaphasic movement. In Submetacentric chromosomes, the position of cenfromere is submedian, ie, one arm is smaller and other one is larger. Such chromosome appear L-shaped during anaphasic movements. An Acrocentric chromosomes, centromere appears sub terminal, ie, with a very small and a very long arm. In case of Telocentric chromosomes, centromere is truely terminal, ie, situated in telomeric region.
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