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 categorized as: (i) Metacentric (ii) Submetacentric (iii) Acrocentric (iv) 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 centromere is submedian, ie, one arm is smaller and other one is larger. Such chromosomes appear L-shaped during anaphasic movements. In Acrocentric chromosomes, centromere appears subterminal, 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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