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List 2 events that occur during the process of meiosis that lead to genetically unique daughter cells (gametes)

Human Heredity: Principles and Issues (MindTap Course List)

11th Edition

ISBN:9781305251052

Author:Michael Cummings

Publisher:Michael Cummings

Chapter2: Cells And Cell Division

Section: Chapter Questions

Problem 28QP: Provide two reasons why meiosis leads to genetic variation in diploid organisms.

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List 2 events that occur during the process of meiosis that lead to genetically unique daughter cells (gametes).

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Explain how the random alignment of homologous chromosomes during metaphase I contributes to variation in gametes produced by meiosis.
Figure 13.6 Which of the following statements about nondisjunction is true? Nondisjunction only results in gametes with n+1 or n-1 chromosomes. Nondisjunction occurring during meiosis II results in 50 percent normal gametes. Nondisjunction during meiosis I results in 50 percent normal gametes. Nondisjunction always results in four different kinds of gametes.
Compare meiotic anaphase I with meiotic anaphase II. Which meiotic anaphase is most similar to the mitotic anaphase?
Because of the ________ alignment of homologous chromosomes during meiosis, gametes can end up with _________ mixes of maternal and paternal chromosomes. a. unvarying; different b. unvarying; duplicate c. random; duplicate d. random; different
Aneuploidies are deleterious for the individual because of what phenomenon? a. nondisjunction b. gene dosage c. meiotic errors d. X inactivation
The part of meiosis that is similar to mitosis is_______. a. meiosis I b. anaphase I c. meiosis II d. interkinesis
Nondisjunction can be caused by ________. a. crossing over in meiosis b. segregation in meiosis c. failure of chromosomes to separate during meiosis d. multiple independent assortments
At which stage of meiosis are sister chromatids separated from each other? a. prophase I b. prophase ll c. anaphase I d. anaphase ll
Provide two reasons why meiosis leads to genetic variation in diploid organisms.
Name two key functions of meiosis.
List two differences between meiosis I and meiosis II.
Please explain what would be the consequences in successive generations of offspring if the chromosome number were not reduced during meiosis?