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 :
Sometimes a part of chromosome becomes detached and joins a part of a nonhomologous chromosome, thus producing a translocation. In heteromorphic sex chromosomes, exchanges may occur between nonhomologous parts of the same chromosome pair. Translocations may not involve a loss or an addition of chromosome material, but frequently they do become associated with deficiencies and duplications, unbalanced combinations of genetic units.
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