Human Heredity: Principles and Issues (MindTap Course List)
11th Edition
ISBN: 9781305251052
Author: Michael Cummings
Publisher: Cengage Learning
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Textbook Question
Chapter 2, Problem 23QP
A cell has a diploid number of 6 (2n = 6).
- a. Draw the cell in metaphase of meiosis I.
- b. Draw the cell in metaphase of mitosis.
- c. How many chromosomes are present in a daughter cell after meiosis I?
- d. How many chromatids are present in a daughter cell after meiosis II?
- e. How many chromosomes are present in a daughter cell after mitosis?
- f. How many pairs of homologous chromosomes are visible in the cell in metaphase of meiosis I?
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Which of the following statements are True? There may be more than one answer.
Select one or more:
a. Mitosis results in 2 haploid cells
O b. If a parent cell with 10 chromosomes undergoes mitosis, each offspring cell will have 10 chromosomes
O c. At the start of meiosis, a human cell will have 46 chromosomes and 92 chromatids
d. The purpose of mitosis is the production of gametes
e. In Meiosis, crossing over occurs during Meiosis II
f. Meiosis only occurs in the testes and ovaries
a. What phase of Meiosis II is the cell in? How do you know?
b. Assuming all of the chromosomes present during Meiosis II are shown in the figure above, how many chromosomes (counting homologous pairs as two chromosomes) does a gamete from this organism have?
c. Draw the same cell during the same phase of Meiosis I. Label the elements.
If a diploid organism has 14 chromosomes (2n=14)
a. How many chromosomes will its gametes have?
b. After meiosis I during gamete formation, how many chromosomes are in each daughter cell?
c. After meiosis I during gamete formation, how many chromatids are in each daughter cell?
Chapter 2 Solutions
Human Heredity: Principles and Issues (MindTap Course List)
Ch. 2 - Prob. 1CSCh. 2 - Prob. 2CSCh. 2 - Prob. 3CSCh. 2 - Cell Structure Reflects Function What advantages...Ch. 2 - Assign a function(s) to the following cellular...Ch. 2 - How many autosomes are present in a body cell of a...Ch. 2 - Define the following terms: a. chromosome b....Ch. 2 - Human haploid gametes (sperm and eggs) contain: a....Ch. 2 - Prob. 6QPCh. 2 - Prob. 7QP
Ch. 2 - In the cell cycle, at which stages do two...Ch. 2 - Does the cell cycle refer to mitosis as well as...Ch. 2 - It is possible that an alternative mechanism for...Ch. 2 - Identify the stages of mitosis, and describe the...Ch. 2 - Why is cell furrowing important in cell division?...Ch. 2 - A cell from a human female has just undergone...Ch. 2 - During which phases of the mitotic cycle would the...Ch. 2 - Describe the critical events of mitosis that are...Ch. 2 - Mitosis occurs daily in a human being. What type...Ch. 2 - Speculate on how the Hayflick limit may lead to...Ch. 2 - How can errors in the cell cycle lead to cancer in...Ch. 2 - List the differences between mitosis and meiosis...Ch. 2 - In the following diagram, designate each daughter...Ch. 2 - Which of the following statements is not true in...Ch. 2 - Match the phase of cell division with the...Ch. 2 - A cell has a diploid number of 6 (2n = 6). a. Draw...Ch. 2 - A cell (2n = 4) has undergone cell division....Ch. 2 - We are following the progress of human chromosome...Ch. 2 - What is physically exchanged during crossing over?Ch. 2 - Compare meiotic anaphase I with meiotic anaphase...Ch. 2 - Provide two reasons why meiosis leads to genetic...
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- Using the symbols above: 1. Given: Adult diploid cell (2n = 8) 2. Show the condition of the chromosomes in the following Mitosis phases (illustrate): a. prophase b. metaphase c. anaphase d. telophase/cytokinesisarrow_forwardHumans cells normally have 46 chromosomes (2n). Specify the number of chromosomes present at each of the following stages. In your answers, determine diploid or haploid number of chromosomes and the count the chromatids as chromosomes. For example: anaphase I of meiosis: 46 (2n) = 92 a. metaphase I of meiosis b. metaphase of mitosis c. telophase I of meiosis d. telophase II of meiosisarrow_forwardAll of the following could be deduced from the table except CRITERIA MITOSIS MEIOSIS 1. No. of nuclear division 2. Synapsis/crossing over 3. Centromere of sister chromatids at anaphase 4 No. of daughter cells 5. No. of chromosomes per daughter cell 6 Function I. The mother cell in mitosis divides only once, while the mother cell in meiosis divides twice. II. Synapses only takes place in meiosis. III. Centromere of sister chromatids at anaphase separate in both mitosis and meiosis. The number of daughter cells in mitosis is 2, while meiosis is 4. V. Mitosis is haploid, meiosis is diploid. A. I, II, and III B. I, III, IV and V C. I, Il and IV D. I. II. II. V IV, • If you were asked to cormplete the table with the correct answer, which of the following table would you chose? А. CHITERIA MITOSIS MEIOSIS 1. No. of nuciear dimaion Synapais/cossing ove 3. Centromere of NIuzer chromatids atanaphase No. of daaghter cells PTESEnt MI-anached separates Present separates Haploid 5. No of…arrow_forward
- A,b and c pleasearrow_forwardIn 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_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_forward
- CRITERIA MITOSIS MEIOSIS a. chrosomosomes number of daughter cells b. number of cell divisions c. stages d. Presence of synapses e. presence of crossing over f. cell type that undergoes cell division g. number of daughter cells formed h. DNA content of cells at start of division i. DNA content of daughter cells j. genetic consequencesarrow_forwardWhich of the following statements are true regarding homologous pairs of chromosomes? Select all that apply. A. They are the same size B. Their prescence indicates a cell is a diploid C. They are identical copies of one another D. One of the homologous chromosomes in a set is synthesized during S phase E. They line up next to each other during metaphase I of meiosis F. They are separated in anaphase I of meiosisarrow_forward1. Ten centromeres are observed in a prophase cell from a Sorghum bicolor plant. a. How many pairs of chromosomes does this plant contain? b. For each stage of mitosis, indicate the number of centromeres you would expect to find and the number of copies of chromosomes attached to each centromere. Stage of mitosis: Number of centromeres visible cell Number of chromosomes per copies attached to centromere Prophase Anaphasearrow_forward
- Homologaus Chromasomes A= В. B = XX C = с. D = Centromere A. Sister Chromatids D. 7. Label the following terms/descriptions as either "Sister Chromatids", "Homologous Chromosomes," or "Both." (1 point each; 9 points total) a. Have identical DNA sequences b. Separate during meiosis c. Separate during mitosis d. Separate during meiosis I e. Separate during meiosis II f. One comes from the mother and the other from the father g. Are held together by cohesion h. Can undergo crossing over i. Are separated by the spindlearrow_forwardFor the following events, specify whether they occur during mitosis, meiosis I, or meiosis II:A. Separation of conjoined chromatids within a pair of sisterchromatidsB. Pairing of homologous chromosomesC. Alignment of chromatids along the metaphase plateD. Attachment of sister chromatids to both polesarrow_forwardHow do I draw the daughter cells of the attached parent cellsarrow_forward
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cell division of meiosis and mitosis; Author: Stated Clearly;https://www.youtube.com/watch?v=A-mFPZLLbHI;License: Standard youtube license