Q732
Nullisomic condition is represented by
A.
2n + 1
B.
2n + 1 - 1
C.
2n - 2
AnswerD.
2n + 2
Answer: Option C
Solution
Answer: Option C
Solution:
Nullisomic condition is represented by 2n - 2.Nullisomic is a genetic condition involving the lack of both the normal chromosomal pairs for a species (2n - 2). Humans with this condition will not survive.
It is caused by non-disjunction, during meiosis that causes two of the gametes to have no chromosomal material, leaving the other two gametes to have double the amount of chromosomal material.