
Nondisjunction and Karyotype Review
Flashcard
•
Biology
•
9th - 12th Grade
•
Practice Problem
•
Hard
Wayground Content
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15 questions
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1.
FLASHCARD QUESTION
Front
What is nondisjunction?
Back
Nondisjunction is the failure of homologous chromosomes or sister chromatids to separate properly during cell division, leading to gametes with an abnormal number of chromosomes.
2.
FLASHCARD QUESTION
Front
What are sister chromatids?
Back
Sister chromatids are identical copies of a chromosome, connected by a centromere, that are formed during DNA replication.
3.
FLASHCARD QUESTION
Front
What are homologous chromosomes?
Back
Homologous chromosomes are pairs of chromosomes, one inherited from each parent, that have the same genes at the same loci but may have different alleles.
4.
FLASHCARD QUESTION
Front
What is a karyotype?
Back
A karyotype is a visual representation of an individual's chromosomes, arranged in pairs and organized by size and shape.
5.
FLASHCARD QUESTION
Front
What is the probability of a typical gamete resulting from nondisjunction in metaphase I?
Back
0%.
6.
FLASHCARD QUESTION
Front
What is the probability of a typical gamete resulting from nondisjunction in metaphase II?
Back
50%.
7.
FLASHCARD QUESTION
Front
What occurs during anaphase of mitosis?
Back
During anaphase of mitosis, sister chromatids are pulled apart to opposite poles of the cell.
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