Human Heredity: Principles and Issues (MindTap Course List)
Human Heredity: Principles and Issues (MindTap Course List)
11th Edition
ISBN: 9781305251052
Author: Michael Cummings
Publisher: Cengage Learning
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Chapter 3, Problem 24QP

Meiosis Explains Mendel’s Results: Genes Are on Chromosomes

The following diagram shows a hypothetical diploid cell. The recessive allele for albinism is represented by a, and d represents the recessive allele for deafness. The normal alleles for these conditions are represented by A and D, respectively.

  1. a. According to the principle of segregation, what is segregating in this cell?
  2. b. According to Mendel’s principle of independent assortment, what is independently assorting in this cell?
  3. c. How many chromatids are in this cell?
  4. d. Write the genotype of the individual from whom this cell was taken.

Chapter 3, Problem 24QP, Meiosis Explains Mendels Results: Genes Are on Chromosomes The following diagram shows a

  1. e. What is the phenotype of this individual?
  2. f.        What stage of cell division is represented by this cell (prophase, metaphase, anaphase, or telophase of meiosis I, meiosis II, or mitosis)?
  3. g. After meiosis is complete, how many chromatids and chromosomes will be present in one of the four progeny cells?
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The following diagram shows a hypothetical diploid cell. The recessive allele for albinism is represented by a, and d represents the recessive allele for deafness. The normal alleles for these conditions are represented by A and D, respectively. Please use the symbols A, a, D and d as appropriate to help me understand your answer. a а D 1. According to Mendel's principal of segregation, what is segregating in this cell? 2. According to Mendel's principle of independent assortment, what is independently assorting in this cell? 3. What is the phenotype of this individual? © Cengage Learning
Mendel's second law of independent assortment has its basis in which of the following events of meiosis !? Select one: OO O a. Synapsis of homologous chromosomes b. Separation of homologues at anaphase c. Separation of cells at telophase d. Alignment of tetrads at the equator e. Crossing over
Gregor Mendel developed an understanding of heredity through his experiments with pea plants. The diagram below shows a cell with 2 pairs of homologous chromosomes and genotype of AaBb. a. Identify all the possible allele combinations that could be formed if this cell undergoes meiosis. b. Identify one of Mendel's laws that is illustrated when you write out these allele combinations. EXPLAIN this law.

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Human Heredity: Principles and Issues (MindTap Course List)

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