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In metaphase I of meiosis, the homologous chromosomes of a cell lined up as shown below. Part 1 Select all the possible gametes if this cell suffered from nondisjunction of the smaller chromosome in meiosis I (meiosis II normal). Assume no crossing-over. a A Aa a X X bb BB ABb A ☐ ab D Ab aBB

In metaphase I of meiosis, the homologous chromosomes of a cell lined up as shown below. Part 1 Select all the possible gametes if this cell suffered from nondisjunction of the smaller chromosome in meiosis I (meiosis II normal). Assume no crossing-over. a A Aa a X X bb BB ABb A ☐ ab D Ab aBB

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Part 2 Select all the possible gametes if this cell suffered from nondisjunction of the smaller chromosome in ONE (not both) of the cells undergoing meiosis II (meiosis I normal), taking into account each of the possible nondisjunctions that could occur. Assume no crossing-over. aBb aBB aB O AB A ABb a ab Abb D Ab Incorrect • When nondisjunction occurs in meiosis II, sister chromatids fail to separate: in this case, either BB or bb. In the gamete ABb, the extra chromosome is a homologous chromosome.
Transcribed Image Text:Part 2 Select all the possible gametes if this cell suffered from nondisjunction of the smaller chromosome in ONE (not both) of the cells undergoing meiosis II (meiosis I normal), taking into account each of the possible nondisjunctions that could occur. Assume no crossing-over. aBb aBB aB O AB A ABb a ab Abb D Ab Incorrect • When nondisjunction occurs in meiosis II, sister chromatids fail to separate: in this case, either BB or bb. In the gamete ABb, the extra chromosome is a homologous chromosome.
In metaphase I of meiosis, the homologous chromosomes of a cell lined up as shown below. Part 1 Select all the possible gametes if this cell suffered from nondisjunction of the smaller chromosome in meiosis I (meiosis II normal). Assume no crossing-over. a A A a a XX b b BB ABb O A ab O Ab aBB
Transcribed Image Text:In metaphase I of meiosis, the homologous chromosomes of a cell lined up as shown below. Part 1 Select all the possible gametes if this cell suffered from nondisjunction of the smaller chromosome in meiosis I (meiosis II normal). Assume no crossing-over. a A A a a XX b b BB ABb O A ab O Ab aBB
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