Biology: The Unity and Diversity of Life (MindTap Course List)
15th Edition
ISBN: 9781337408332
Author: Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher: Cengage Learning
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Chapter 14, Problem 8SQ
Summary Introduction
Introduction: During sexual reproduction, meiosis is a process of cell division where chromosome number is reduced to half. Its purpose is the formation of gametes. The homologous chromosomes randomly align with their homologs at metaphase I. The chromosomes are randomly paired and segregated to opposite poles.
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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. Translocation
In 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 I
During meiosis, in which stage does crossing
over occur?
Select one:
a. Anaphase I
b. Prophase I
O c. Metaphase I
d. Prophase II
O e. Anaphase II
Chapter 14 Solutions
Biology: The Unity and Diversity of Life (MindTap Course List)
Ch. 14 - Prob. 1DAACh. 14 - Prob. 2DAACh. 14 - Prob. 3DAACh. 14 - Prob. 4DAACh. 14 - Prob. 5DAACh. 14 - Prob. 1SQCh. 14 - Pedigree analysis is necessary when studying human...Ch. 14 - A recognized set of symptoms that characterize a...Ch. 14 - Prob. 4SQCh. 14 - A trait that is present in a male child but not in...
Ch. 14 - Choose the statement that is incorrect. a. A son...Ch. 14 - Prob. 7SQCh. 14 - Prob. 8SQCh. 14 - Klinefelter syndrome (XXY) can most be easily...Ch. 14 - Prob. 10SQCh. 14 - Does the phenotype indicated by the red circles...Ch. 14 - G6PD deficiency is an X-Linked recessive disorder....Ch. 14 - Marian syndrome (Section 13.5) is inherited in an...Ch. 14 - Duchenne muscular dystrophy, which is inherited in...Ch. 14 - Human females have two X chromosomes (XX); males...Ch. 14 - A mutation on an autosome causes a particular...Ch. 14 - Expression of the SRY gene on the Y chromosome...Ch. 14 - The somatic cells of most individuals with Down...Ch. 14 - Mutations in the genes for clotting factor VIII...
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- Which phase of meiosis reduces the chromosomenumber?a. prophase I c. anaphase Ib. prophase II d. anaphase IIarrow_forwardAlternative forms of the same gene are called _________ . a. gametes c. alleles b. homologous d. sister chromatidsarrow_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_forward
- Match the specific phase of meiosis with the correct description._____ Prophase I a. Homologous chromosomes arrive atopposite poles._____ Metaphase I b. Homologous chromosomes line up._____ Anaphase I c. Chromosomes line up at the equator._____ Telophase I d. Independent assortment occurs._____ Prophase II e. Separated sister chromatids arrive atopposite poles._____ Metaphase II f. Sister chromatids remain condensed._____ Anaphase II g. Crossing over occurs._____ Telophase II h. Sister chromatids pull apart.arrow_forwardShown below is a photomicrograph of Rhoeo tradescantia cell undergoing meiosis. Answer the following question for the photomicrograph: a. Identify the cytogenetic abnormality observed (ex. ring, chain, laggard, bridge) b. Identify the meiotic stage in which these aberrations are observed (as shown in the photomicrograph) c. Explain how these aberrations are formed d. Will this result to sterile or fertile gametes? Explain.arrow_forwardIdentify whether the following terms is related to either mitosis or meiosis or both. 1. Identify whether the following terms is related to either mitosis or meiosis or both. a. mitosis b. meiosis c. both 2. somatic cells/ body cells a. mitosis b. meiosis c. both 3. two genetically similar diploid cellsarrow_forward
- A man who is color blind and has hemophilia and a woman who is neither color blind nor a hemophiliac have a daughter with triple X syndrome (XXX) who has hemophilia and is color blind. Where did the nondisjunction occur? Group of answer choices a. Paternal meiosis II only b. Maternal meiosis II or paternal meiosis I c. Maternal meiosis I or paternal meiosis II d. Paternal meiosis II or maternal meiosis II e. Maternal meiosis II only (b is not the right answer)arrow_forwardHomologous chromosome: A. Are identical B. Carry information for the same traits C. Carry the same alleles D. Align on the metaphase plate in meiosis IIarrow_forwardf chromosomal nondisjunction occurs during meiosis I, what proportionof zygotes formed from the resulting gametes would be aneuploid? (Assume the gametes from the otherparent are normal) a. 0% b. 25% c. 50% d. 75% e. 100%arrow_forward
- Which 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_forwardWhich of the following terms describes the process of homologous chromosomes failing to separate correctly during meiosis?A. Chromatid adhesion syndromeB. NondisjunctionC. AmetaphasiaD. Anti-anaphasearrow_forwardMatch each cell to proper phase of meiosis. G A. TelophaseII B B. Anaphase I C. Telophase I D. Prophase II E. Anaphase II F. Metaphase II G. Metaphase I H. Prophase Iarrow_forward
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