Question

Which of the following statements about chromosomal aberrations is TRUE?

a) Duplications and deletions lead to "genetic imbalance."
b) Inversions and translocations lead to "position effect."
c) Both A and B
d) Neither A nor B

Answer 1

Duplications and deletions lead to genetic imbalance, which can result in abnormal phenotypes or health conditions.

Step-by-step explanation:

The correct statement about chromosomal aberrations is: a) Duplications and deletions lead to 'genetic imbalance.'

Duplications and deletions refer to situations where a segment of a chromosome is either repeated or lost, respectively. These abnormalities can lead to an imbalance in the genetic material, which can result in abnormal phenotypes or health conditions.

On the other hand, inversions and translocations do not directly result in genetic imbalance. Instead, inversions involve a flipping and rejoining of a chromosome segment, while translocations occur when a segment from one chromosome becomes attached to a different chromosome. Therefore, the correct answer is a) Duplications and deletions lead to 'genetic imbalance.'