Concepts of Biology
1st Edition
ISBN: 9781938168116
Author: Samantha Fowler, Rebecca Roush, James Wise
Publisher: OpenStax College
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Chapter 7, Problem 11RQ
Aneuploidies are deleterious for the individual because of what phenomenon?
a. nondisjunction
b. gene dosage
c. meiotic errors
d. X inactivation
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What is it called when chromosomes fail to separate properly during meiosis?
A. Nondisjunction
B. Karyotype
C. Chromosomal separation failure
D. Inappropriate separation
E. Karyokinesis
Aneuploidies are deleterious for the individual because of what phenomenon?a. nondisjunctionb. gene dosagec. meiotic errorsd. X inactivation
Which phase of meiosis reduces the chromosomenumber?a. prophase I c. anaphase Ib. prophase II d. anaphase II
Chapter 7 Solutions
Concepts of Biology
Ch. 7 - Figure 7.2 If a mutation occurs so that a fungus...Ch. 7 - What is a likely evolutionary advantage of sexual...Ch. 7 - Which type of life cycle has both a haploid and...Ch. 7 - Which event leads to a diploid cell in a life...Ch. 7 - Meiosis produces daughter cells. a. two haploid b....Ch. 7 - At which stage of meiosis are sister chromatids...Ch. 7 - The part of meiosis that is similar to mitosis...Ch. 7 - If a muscle cell of a typical organism has 32...Ch. 7 - The genotype XXY corresponds to: a. Klinefelter...Ch. 7 - Abnormalities in the number of X chromosomes tend...
Ch. 7 - Aneuploidies are deleterious for the individual...Ch. 7 - Explain the advantage that populations of sexually...Ch. 7 - Describe the two events that are common to all...Ch. 7 - Explain how the random alignment of homologous...Ch. 7 - In what ways is meiosis II similar to and...Ch. 7 - Individuals with trisomy 21 are more likely to...
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- Any deviation in the number of chromosomes that involves individual chromosomes, as opposed to entire sets of chromosomes, is known as which one of the following?a. Aneuploidy c. Duplication b. Disomy d. Translocationarrow_forwardWhich of the following meiotic events by itself does NOT result in an abnormal set of genes in a gamete? a. Translocation b. Deletion c. Nondisjunction d. Recombination e. Inversionarrow_forwardWhen 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_forward
- What cellular process is responsible for genetic recombination? a. The independent alignment of homologous pairs during meiosis I b. Separation of the homologues in meiosis I c. Separation of the chromatids during meiosis II d. Crossing over between homologuesarrow_forwardThe stages of meiosis where independent assortment occurs and crossing over begins, respectively, are Select one: a. Metaphase I and prophase II b. Metaphase II and prophase I c. Metaphase I and prophase I d. Metaphase I and II and prophase I and IIarrow_forwardWhich division of meiosis (meiosis I or meiosis II) a. most resembles mitosis? b. cuts the chromosome number in half? c. produces 2 haploid cells? d. always begins with diploid cells?arrow_forward
- What process might produce a gamete with one extra chromosome? a. Nondisjunction c. Translocation b. Crossing over d. Independent assortmentarrow_forwardWhich case of nondisjunction is MOST likely to result in the production of an aneuploid cell? A. nondisjunction in meiosis I because two of the resulting cells will be n+1 and two will be n–1 B. nondisjunction in meiosis I because two of the resulting cells will be n; one will be n+1 and one will be n–1 C. nondisjunction in meiosis II because two of the resulting cells will be n+1 and two will be n–1 D. nondisjunction in meiosis II because all four resulting cells will be n; one will be n+1 and one will be n–1arrow_forwardDuring which stage(s) of meiosis do you expect to find tetrads? Select one: a. Prophase I and prophase II b. Prophase I and metaphase I c. Prophase I only d. Prophase I, metaphase I, and anaphase Iarrow_forward
- The picture depicts what stage of MEIOSIS? a. metaphase 1 b. metaphase Il c. prophase 1 d. prophase II Select an answer and submit. For keyboard navigation, use the up/down arrow keys select an answer. a b.arrow_forwardIn which phase of meiosis does crossing over occur? Group of answer choices A. prophase I B. prophase II C. anaphase II D. metaphase I E. metaphase Iarrow_forwardHow many rounds of cell division are there in meiosis? Group of answer choices A. 1 B. 0 C. 2 D. 4arrow_forward
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