Human Biology (MindTap Course List)
11th Edition
ISBN: 9781305112100
Author: Cecie Starr, Beverly McMillan
Publisher: Cengage Learning
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Chapter 18, Problem 10SQ
Because of the ________ alignment of homologous chromosomes during meiosis, gametes can end up with _________ mixes of maternal and paternal chromosomes.
- a. unvarying; different
- b. unvarying; duplicate
- c. random; duplicate
- d. random; different
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The 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.
Which of the following terms describes the process of homologous chromosomes failing to separate correctly during meiosis?A. Chromatid adhesion syndromeB. NondisjunctionC. AmetaphasiaD. Anti-anaphase
Which 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.
Inversion
Chapter 18 Solutions
Human Biology (MindTap Course List)
Ch. 18 - Prob. 1RQCh. 18 - Prob. 2RQCh. 18 - Prob. 3RQCh. 18 - Name the four main stages of mitosis, and describe...Ch. 18 - Prob. 5RQCh. 18 - Prob. 6RQCh. 18 - Prob. 1SQCh. 18 - Prob. 2SQCh. 18 - Prob. 3SQCh. 18 - Prob. 4SQ
Ch. 18 - Prob. 5SQCh. 18 - After mitosis, each daughter cell contains genetic...Ch. 18 - All of the following are stages of mitosis except...Ch. 18 - Prob. 8SQCh. 18 - Prob. 9SQCh. 18 - Because of the ________ alignment of homologous...Ch. 18 - Match the stage of mitosis with the following key...Ch. 18 - Normally you cant inherit both copies of a...Ch. 18 - Suppose you have a way of measuring the amount of...Ch. 18 - Adams maternal and paternal chromosomes have...Ch. 18 - Fresh out of college, Maria has her first job...
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- An individual can have an abnormal number of chromosomes as a result of nondisjunction. Identify the following example of nondisjunction that results in an abnormal number of chromosomes. A. Sister chromatids do not separate in meiosis II. B. Homologous chromosomes move apart appropriately during meiosis I. C. Mitosis occurs normally during embryonic development. D. Two normal gametes fuse during fertilization.arrow_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_forwarda. If a set of chromosomes is one copy of each kind of chromosome, how many sets are in a human sperm_____. How many chromosomes are in a human sperm____. b. How many sets of chromosomes are in a human egg_____. How many chromosomes are in a human egg_____. c. Why is there such a different in size and number of sperm cells in the testes compared to the number of oocytes in the ovaries ?arrow_forward
- What is it called when chromosomes fail to separate properly during meiosis? A. Nondisjunction B. Karyotype C. Chromosomal separation failure D. Inappropriate separation E. Karyokinesisarrow_forwardThe two main sources of genetic variation from meiosis are ________. a. random orientation of homologous pairs and mutation b. crossing over and random mutation c. random orientation of homologous pairs and crossing overarrow_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
- Homologous 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_forwardWhat is the significant events of the stages in Meiosis? (explain in 2-3 sentences)a. Prophase Ib. Metaphase Ic. Anaphase Id. Telophase Ie. Prophase IIf. Metaphase IIg. Anaphase IIh. Telophase IIarrow_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_forward
- In what phase of meiosis/mitosis would you find doubled chromosomes moving to opposite sides of a cell? Group of answer choices A. metaphase of meiosis 1 B. anaphase of mitosis C. anaphase of meiosis 2 D. anaphase of meiosis 1 E. metaphase of meiosis 2arrow_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
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