Asked by Wendy Echevarría on May 21, 2024
Verified
When homologous chromosomes fail to separate during meiosis, this is termed
A) linked genes.
B) disjunction.
C) nondisjunction.
D) crossover.
E) monosomy.
Nondisjunction
Failure of the homologous chromosomes or sister chromatids to separate during either mitosis or meiosis; produces cells with abnormal chromosome numbers.
Homologous Chromosomes
Pair of chromosomes that have the same gene sequences, each derived from one parent.
Meiosis
A type of cell division that reduces the chromosome number by half, resulting in the production of gametes or spores in sexually reproducing organisms.
- Clarify the theories of nondisjunction, trisomy, and monosomy, with a focus on their effects on hereditary diseases.
Verified Answer
AL
anastasia lewisMay 25, 2024
Final Answer :
C
Explanation :
Nondisjunction is the failure of homologous chromosomes to separate during meiosis, resulting in an abnormal distribution of chromosomes in the daughter cells.
Learning Objectives
- Clarify the theories of nondisjunction, trisomy, and monosomy, with a focus on their effects on hereditary diseases.