Human Biology (MindTap Course List)
11th Edition
ISBN: 9781305112100
Author: Cecie Starr, Beverly McMillan
Publisher: Cengage Learning
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Chapter 18, Problem 3SQ
Summary Introduction
Introduction: A chromosome is a thread-like structure made up of deoxyribonucleic acid (DNA). It is tightly packed in the nucleus of a cell. Humans normally have 23 pairs of chromosomes.
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Students have asked these similar questions
Microscopic examination of a section of a normal young adult ovary reveals large numbers of
unusually large cells surrounded by a single layer of flat epithelial cells. In which phase of the cell
cycle are these cells arrested?
A. Diplotene stage of the 1st meiotic division
B. Diplotene stage of the 2nd meiotic division
C. Metaphase stage of mitosis
D. Prophase stage of mitosis
E. Prophase stage of the 2nd meiotic division
appear during various stages of either mitosis or meiosis, and answer the following questions.
45. Refer to the drawings in Figure 13.2 of a single pair of homologous chromosomes as they might
II
II
IV
VI
Figure 13.2
Which diagram represents prophase I of meiosis?
a.
b. v
II
d. IV
e. VI
c.
46. If a cell does not receive a go ahead signal at the Gl checkpoint in the cell cycle
then it will
a. proceed on to the "S" phase
b. go directly to jail
c. proceed to mitosis
d. enter a nondividing state called the Go phase
DO not pass GO. DO not collect $200
47. When T2 phages infect bacteria and make more viruses in the presence of radioactive
phosphorus, what is the result?
The bacterial DNA will be radioactive.
The viral DNA will be radioactive. The boacterial DNA will be radioactive.
The viral DNA will be radioactive. The viral proteins will be radioactive.
b.
c.
The viral DNA will be radioactive.
d.
e. The viral proteins will be radioactive.
48. Each amino acid attaches to its proper tRNA…
Which of these things happens in meiosis but Not mitosis?
A. sister chromatids separate from each other
B. diploid daughter cells are formed
C. homologous chromosomes pair up
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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- Which phase of meiosis reduces the chromosomenumber?a. prophase I c. anaphase Ib. prophase II d. anaphase IIarrow_forwardWhat is it called when chromosomes fail to separate properly during meiosis? A. Nondisjunction B. Karyotype C. Chromosomal separation failure D. Inappropriate separation E. Karyokinesisarrow_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
- 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_forwardMatch the terms to their corresponding definitions. 1. long strands of DNA 2. each half of the x-shape 3. sex cells 4. groups of proteins that keep DNA organized a. chromatids b. chromosomes c. histones d. gametesarrow_forwardAny 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_forward
- The image represents a cell in ___________________ of Meiosis. a) anaphase I b) anaphase IIarrow_forwardChoose the option that best fits the blank. Henrietta Lacks was female, so, naturally, all the cells from her derived cancerous cell line have _________ chromosomes. A. Only X B. X and Y C. Only Yarrow_forwardWhen a germ cell undergoes meiosis, which event would MOST likely result in four aneuploid daughter cells? A. misalignment of the chromosomes during metaphase I B. misalignment of the chromosomes during anaphase I C. misalignment of the chromosomes during metaphase II D. misalignment of the chromosomes during anaphase IIarrow_forward
- A chromosomal mutation that occurs during meiosis may or may not be expressed in an organism’s offspring. A similar mutation that only occurs during mitosis of a body cell will not be expressed in the organism’s offspring. Evaluate these claims. Determine whether or not they are true, and explain your reasoning.arrow_forwardConsider a diploid cell from an unknown organism that undergoes meiosis. The four gametes produced have 8, 8, 7, and 5 chromosomes. When did nondisjunction occur? a.Meiosis I and II b.Only meiosis I c.Mitosis d.Only meiosis II e.Nondisjunction did not occurarrow_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_forward
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