Biology: Life on Earth (11th Edition)
11th Edition
ISBN: 9780134256283
Author: Audesirk
Publisher: PEARSON
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Chapter 10, Problem 4MC
Which of the following does not contribute to genetic variability?
a. accurate replication of DNA
b. crossing over
c. random alignment of homologous chromosomes during metaphase I of meiosis
d. union of sperm and egg
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Which of the following is not a contributor to genetic variation? (a) binary fission (b) crossing-over of homologous chromosomes (c) random assortment of homologous chromosomes (d) fertilization
Which of the following is not a contributor to genetic variation? (a) replication of sister chromatids (b) crossing-over of homologous chromosomes (c) random assortment of homologous chromosomes (d) fertilization
Which of the following is least likely to produce genetic variation in the offspring of an individual?
(a) a DNA replication error caused by DNA polymerase in a body cell of the individual
(b) a cross over event during meiosis that creates a new combination of alleles in the gametes
(c) independent assortment of chromosomes during meiosis that creates a new combination of alleles in the gametes
(d) the random fertilization of an egg cell by a sperm cell during sexual reproduction
Chapter 10 Solutions
Biology: Life on Earth (11th Edition)
Ch. 10 - Pairs of chromosomes with almost identical genetic...Ch. 10 - A cell with three or more copies of each...Ch. 10 - During crossing over, a. chromatids of homologous...Ch. 10 - Which of the following does not contribute to...Ch. 10 - Haploid nuclei are first formed at what stage of...Ch. 10 - 1. Meiotic cell division produces _______ (how...Ch. 10 - During _______ of meiosis I, homologous...Ch. 10 - Prob. 3FTBCh. 10 - Prob. 4FTBCh. 10 - Women with __________ syndrome have a single X...
Ch. 10 - Prob. 1RQCh. 10 - 2. Describe crossing over. At which stage of...Ch. 10 - 3. In what ways are mitosis and meiosis similar?...Ch. 10 - 4. Diagram and describe the three main types of...Ch. 10 - Describe how meiosis provides for genetic...Ch. 10 - Define nondisjunction, and describe common...Ch. 10 - 1. Many plants can reproduce sexually or...
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- What makes sexually reproduced offspring genetically different from their parents? a. Genetic recombination during mitosis b. Genetic recombination during meiosis c. Sexual reproduction does not produce genetically different offspring d. Crossing over during mitosisarrow_forwardHow do each of the following contribute to genetic variation in offspring? a. Crossing over b. Random assortment of homologous chromosomes c. Fertilizationarrow_forwardWhat is the main difference between autopolyploid and allopolyploid? a. the number of chromosomes b. the functionality of the chromosomes c. the source of the extra chromosomes d. the number of mutations in the extra chromosomesarrow_forward
- Which type of life cycle has both a haploid and diploid multicellular stage? a. an asexual life cycle b. diploid-dominant c. haploid-dominant d. alternation of generationsarrow_forwardA) Hoe many cells are produced by the end of meiosis II? B) Are the cells produced at the end of meiosis II haploid or diploid? C) Are the chromosomes of the four final meiotic products replicated or nonreplicated?arrow_forwardThe set of specific alleles on a single chromosome is known as what? a. A phenotype b. Diploidy c. A genetic locus d. A haplotypearrow_forward
- Heritable variation is required for which of the following? A) Evolution B) Asexual reproduction C) Mitosis D) Meiosisarrow_forward_______ are chromosomes whose genes have no direct impact on the sex of an organism. a Gametes b Homologous chromosomes c Autosomes d Germ cellsarrow_forwardList 3 important events that occur during meiosis and provide a justification why each should happen at a specific stage.arrow_forward
- When two genes are genetically “linked”, gametes produced during meiosis will usually contain allele combinations that mimic the way the alleles were placed on the parent cell’s chromosomes unless what process successfully occurs? Select one: a. Disjunction b. Self-fertilization c. Crossing over/recombination d. Aneuploidyarrow_forwardHow does the sexual life cycle increase the genetic variation in a species? a. by providing gametes with different combinations of parental chromosomes. b. by allowing the combination of chromosomes from two different individuals. c. by allowing recombination of the alleles on a chromosome. d. A and B only. e. A, B, and C. Explain your answer.arrow_forwardWhich of the following statements is false? A. Humans have 1 pair of sex chromosomes B. Humans have 46 chromosomes C. Sex chromosomes are considered a homologous pair D. Humans have 23 pairs of chromosomes E. Humans have 22 autosomesarrow_forward
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