Biology: Life on Earth
10th Edition
ISBN: 9780321729712
Author: Gerald Audesirk, Teresa Audesirk, Bruce E. Byers
Publisher: Benjamin Cummings
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Chapter 9, Problem 9FTB
Fill-in-the-Blank
During__________ of meiosis I, homologous chromosomes intertwine, forming structures called __________. These structures are the sites of what event?_________ LO10
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Between meiosis I and meiosis II, meiosis II is more similar to mitosis.
If nondisjunction occurs during meiosis II, how many of the daughter cells will have an incorrect number of chromosomes?
1
3
2
4
At the end of meiosis I, which of the following remains attached?
A. Sister chromatids
B. Homologous chromosomes
C. Tetrads
36
Chapter 9 Solutions
Biology: Life on Earth
Ch. 9 - Fill-in-the-Blank The genetic material of all...Ch. 9 - Fill-in-the-Blank Genetically identical offspring...Ch. 9 -
2. Prokaryotic cells divide by a process called...Ch. 9 - Growth and development of eukaryotic organisms...Ch. 9 - Fill-in-the-Blank Most plants and animals have...Ch. 9 - The four phases of mitosis are _______, _______,...Ch. 9 - Prob. 7FTBCh. 9 - Prob. 8FTBCh. 9 - Fill-in-the-Blank During__________ of meiosis I,...Ch. 9 - Fill-in-the-Blank Three processes that promote...
Ch. 9 - Prob. 1RQCh. 9 - Prob. 2RQCh. 9 -
2. Define mitosis and cytokinesis. What changes...Ch. 9 - Diagram the stages of mitosis. How does mitosis...Ch. 9 - Define the following terms: homologous chromosome...Ch. 9 -
5. Describe and compare the process of...Ch. 9 - How is the cell cycle controlled? Why is it...Ch. 9 - Diagram the events of meiosis. At which stage do...Ch. 9 - Prob. 9RQCh. 9 - In what ways are mitosis and meiosis similar? In...Ch. 9 - Describe or diagram the three main types of...Ch. 9 - Describe how meiosis provides for genetic...Ch. 9 - Most nerve cells in the adult human central...Ch. 9 - Cancer cells divide out of control. Side effects...Ch. 9 - Some animal species can reproduce either asexually...
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- The chromosome constitution number of this individual is 2=6. This drawing represents: a. mitotic metaphase. b. meiotic metaphase I. c. meiotic metaphase II. d. a gamete. e. sixnonhomologous chromosomes.arrow_forwardAn important function of meiosis is to reduce the chromosome number to exactly half.How is this done? What makes such a process necessary?arrow_forwardA. In the beginning of meiosis II, each chromosome is duplicated and attached. These chromosomes are called? _______ B. In meiosis, the process of homologous chromosomes lining up together side-by-side is called ___________arrow_forward
- How would the mutation of a single chromosome in metaphase 1 of meiosis affect the process of meiosis? Use a simple cell with two chromosomes, what is the ratio of gametes with the mutation vs without the mutation?arrow_forwardDraw a diagram to show how nondisjunction of all chromosomesduring meiosis I in one parent could lead to polyploid offspring.(Use 2n = 6 for the starting cells; assume the other parent’s gametecontributes the normal number of chromosomes.)arrow_forwardMitosis reduces the chromosome number of the two daughter cells by one-half? Group of answer choices True False Nondisjunction may occur during meiosis I and II? Group of answer choices false truearrow_forward
- The cells produced at the end of Meiosis are not genetically identical. Why is this important?arrow_forwardWhich of the following correctly describes a homologous pair of chromosomes in prophase of meiosis I? a- Two replicated chromosomes, each of which is one double-stranded DNA molecule b- Four replicated chromosomes, each of which is one double-stranded DNA molecule c- Two replicated chromosomes, each of which is two double-stranded DNA molecules d- Four replicated chromosomes, each of which is two double-stranded DNA moleculesarrow_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_forward
- 19. Consider the data below to answer item 19. What information can be provided in the column for meiosis? A. 4 - n or haploid B. 4 - 2n or diploid C. 2 - 2n or diploid D. 2 - n or haploidarrow_forwardWhich phase of meiosis reduces the chromosomenumber?a. prophase I c. anaphase Ib. prophase II d. anaphase IIarrow_forwardIn humans, random alignment of homologous chromosomes at metaphase, I in meiosis can theoretically generate about how many different combinations of chromosomes? Group of answer choices 8 8,000 900,000 8,000,000arrow_forward
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The Cell Cycle and its Regulation; Author: Professor Dave Explains;https://www.youtube.com/watch?v=eqJqhA8HSJ0;License: Standard YouTube License, CC-BY
Cell Division - Mitosis and Meiosis - GCSE Biology (9-1); Author: Mr Exham Biology;https://www.youtube.com/watch?v=w7vp_uRA8kw;License: Standard YouTube License, CC-BY