Human Biology (MindTap Course List)
11th Edition
ISBN: 9781305112100
Author: Cecie Starr, Beverly McMillan
Publisher: Cengage Learning
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Textbook Question
Chapter 20, Problem 1SQ
_______ segregate during ______.
- a. Homologues; mitosis
- b. Genes on one chromosome; meiosis
- c. Homologues; meiosis
- d. Genes on one chromosome; mitosis
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Which phase of meiosis reduces the chromosomenumber?a. prophase I c. anaphase Ib. prophase II d. anaphase II
The picture depicts what stage of MEIOSIS?
a. metaphase 1
b. metaphase Il
c. prophase 1
d. prophase II
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The dividing cells shown in the picture would be in _?_ of _?_. Assume that the starting cell was diploid and it was 2n=4.
A. Metaphase, mitosis
B. Metaphase, meiosis I
C. Metaphase, meiosis II
D. Anaphase, meiosis I
E. Anaphase, mitosis
Chapter 20 Solutions
Human Biology (MindTap Course List)
Ch. 20 - Prob. 1RQCh. 20 - What is a carrier of a genetic trait?Ch. 20 - What evidence indicates that a trait is coded by a...Ch. 20 - Prob. 4RQCh. 20 - Explain what nondisjunction is, and give two...Ch. 20 - _______ segregate during ______. a. Homologues;...Ch. 20 - Prob. 2SQCh. 20 - Genes on the same chromosome tend to stay together...Ch. 20 - Prob. 4SQCh. 20 - A chromosomes structure can be altered by _______....
Ch. 20 - Nondisjunction can be caused by ________. a....Ch. 20 - A gamete affected by nondisjunction could have...Ch. 20 - Genetic disorders can be caused by __________. a....Ch. 20 - A person who is a carrier for a genetic trait...Ch. 20 - Prob. 10SQCh. 20 - If a couple has six boys, what is the probability...Ch. 20 - Human sex chromosomes are XX for females and XY...Ch. 20 - People with Down syndrome have an extra copy of...Ch. 20 - Prob. 4CTCh. 20 - Prob. 5CTCh. 20 - About 4 percent of people of Northern European...Ch. 20 - The following pedigree shows the pattern of...
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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 statements is INCORRECT? Mitosis is a conservative mechanism that preserves the genetic status quo. Meiosis is a special type of cellular division that occurs in gametes. After mitosis, two identical 2n daughter cells are produced. After meiosis I, four n daughter cells are produced. Genetic recombination or diversity is a feature of __________. A. Meiosis I C. Mitosis B. Meiosis II D. Choices A, B, and C are correct. The following are cellular events during prophase I, EXCEPT: A. Chromatin condensation C. Crossing-over B. Synapsis D. Paired homologs attach to spindle fibers. Which of the following statements refers to synapsis? It is the pairing of homologous chromosomes during meiosis. It is the alignment of chromosomes on the equatorial plate. It is the exchange of parts between non-sister chromatids. It represents the sites where crossing-over occurred. Which of the following events below…arrow_forwardWhich process is being shown in this picture? * a B. D. Mitosis Meiosis Osmosis Crossing Over Marrow_forward
- The law of segregation of chromosomes arises due to events in _________. A. Mitosis and meiosis II B. Mitosis and meiosis I C. Meiosis I only D. Meiosis II onlyarrow_forwardWhich phase of meiosis is depicted in the drawing below?a. Metaphase of meiosis Ib. Metaphase of meiosis IIc. Anaphase of meiosis Id. Anaphase of meiosis IIarrow_forwardThese items separate from each other during anaphase 2 of meiosis. a. Sister chromatids b. Homologous chromosome c. Genes d. The two parts of a cellarrow_forward
- Which of the following can occur by the process of meiosis but not mitosis? A. Haploid cells fuse to form diploid cells B. Diploid cells form haploid cells C. A diploid cell combines with a haploid cell D. Haploid cells multiply into more haploid cellsarrow_forwardCells that result from meiosis are: a. Diploid b. Haploid c. Zygotic d. Triploidarrow_forwardThe following image shows one specific stage of meiosis. Which of the following correctly states what is occurring in this stage? A. Microtubules have begun to pull sister chromatids apart, pulling them toward the poles of the cells. There are two cells at this stage. B. Microtubules have begun to pull homologous chromosomes apart, pulling them toward the poles of the cell. There is only one cell at this stage. C. Microtubules have attached to the chromosomes. Homologous chromosomes are aligned at the midpoint of the cell. There is only one cell at this stage. D. The chromosomes have reached the poles of the cell. There are technically two cells, but cytokinesis has begun in each.arrow_forward
- Identify 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_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_forwardWhen does DNA replication take place regarding meiosis? DNA replication___ (select one) A. Occurs between meiosis I and meiosis II B. occurs during Prophase I C. occurs before meiosis I begins D. does not take place in cells best into undergo meiosisarrow_forward
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