Asked by Vu Hoa Duong (K13_HN) on Jul 26, 2024
Verified
An XXX female would most likely result from nondisjunction in
A) the mother during egg formation.
B) the father during sperm formation.
C) in both the mother and father during gamete formation.
D) the fertilized egg.
E) neither the mother nor the father.
Nondisjunction
An error in cell division that results in offspring with an abnormal number of chromosomes.
XXX Female
Typically refers to an individual with a rare genetic condition featuring an extra X chromosome, resulting in a 47,XXX karyotype.
Gamete Formation
The process of forming gametes (sex cells such as sperm and eggs) through meiosis, in which the number of chromosomes is halved to ensure genetic diversity.
- Explain the notions of nondisjunction, trisomy, and monosomy, including how they influence genetic abnormalities.
Verified Answer
VG
Vaishnavi GunturuJul 28, 2024
Final Answer :
A
Explanation :
Nondisjunction occurs when chromosomes fail to separate during meiosis, resulting in gametes with an abnormal number of chromosomes. In this case, an XXX female would result from the failure of the X chromosome to separate from one of the pairs during meiosis in the mother's egg cell. Therefore, the most likely scenario for nondisjunction resulting in an XXX female is during egg formation in the mother.
Learning Objectives
- Explain the notions of nondisjunction, trisomy, and monosomy, including how they influence genetic abnormalities.