A) If both the assertion and the reason are true and the reason is a correct explanation of the assertion
B) If both the assertion and reason are true but the reason is not a correct explanation of the assertion
C) If the assertion is true but the reason is false
D) If both the assertion and reason are false
E) If the assertion is false but reason is true
Correct Answer: A
Solution :
The position of centromere is fixed for a chromosome. It may lie at the centre (metacentric chromosome), near the centre (submetacentric) subterminal (acrocentric chromosome) or terminal (telocentric chromosome) position. During anaphase the chromosome bends in the region of centromere. Depending upon the position of centromere, an anaphasic chromosome can have V-shape, L-shape, J-shape or I-shape.
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