Biology: The Dynamic Science (MindTap Course List)
4th Edition
ISBN: 9781305389892
Author: Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher: Cengage Learning
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Chapter 11, Problem 5TYK
Summary Introduction
Introduction:
Meiosis is a kind of reduction division that takes place in all eukaryotic organisms including plants, animals, and
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What is the fundamental difference between mitosis and meiosis?
A.
DNA is replicated twice in meiosis, but only once in mitosis.
B.
The number of DNA molecules per cell nucleus is cut in half in meiosis but remains constant in mitosis.
C.
The number of chromosomes doubles in meiosis, whereas it stays the same in mitosis.
D.
Mitosis involves two cell divisions, whereas meiosis only involves one.
a. What phase of meiosis is this cell undergoing?
b. Identify the 3 things that are incorrect in terms of this cells structure and organization?
c. Would this cell produce viable gametes? Why or why not.
A) Give the diploid number of this organism.
B) Is it mitosis or meiosis? Give two (2) elements on which you base your reasoning.
C) Identify this mystery phase of the cell cycle.
D) How many daughter cells will be produced at the end of the process and how many chromosomes (in numbers) will they contain?
E) How does this process ensure the genetic variability of individuals of the species? Your answer must be based on two (2) different elements.
Chapter 11 Solutions
Biology: The Dynamic Science (MindTap Course List)
Ch. 11.1 - How does the outcome to meiosis differ from that...Ch. 11.1 - Prob. 2SBCh. 11.1 - Prob. 3SBCh. 11.2 - Prob. 1SBCh. 11.2 - Consider an animal with six pairs of chromosomes;...Ch. 11.3 - Prob. 1SBCh. 11 - The chromosome constitution number of this...Ch. 11 - Which of the following is not associated with...Ch. 11 - Chiasmata: a. form during metaphase II of meiosis....Ch. 11 - If 2n is four, the number of possible combinations...
Ch. 11 - Prob. 5TYKCh. 11 - The DNA content in a diploid cell in G2 is X. If...Ch. 11 - Metaphase in mitosis is similar to what stage in...Ch. 11 - In the human sperm: a. there must be one...Ch. 11 - In plants, the adult diploid individuals are...Ch. 11 - Prob. 10TYKCh. 11 - Discuss Concepts You have a technique that allows...Ch. 11 - Discuss Concepts One of the human chromosome pairs...Ch. 11 - Prob. 13TYKCh. 11 - Prob. 14TYKCh. 11 - Prob. 15TYKCh. 11 - Prob. 1ITDCh. 11 - Prob. 2ITD
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- A diploid organism produces four gametes from one parent cell through the process of meiosis. Two gametes are found to have 7 chromosomes and two gametes are found to have 5 chromosomes. A) Is this the expected number of chromosomes that would be found in each gamete following a normal cycle of meiosis? If yes, explain why. If no, explain why not and describe how the gamete situation described above occurred. B) Determine the number of homologous chromosome pairs that the original parent cell contained, before meiosis began. Explain how you determined this value.arrow_forwardA) At the end of meiosis I, how many chromosomes are in each cell? B) Are the cells haploid or diploid? C) Are the chromosomes of the meiosis I products replicated or nonreplicated? D) During which phase in meiosis I would crossing over have occurred?arrow_forwardimagine a giraffe whose diploid is 30. A) what # of chromosomes will be present in a somatic cell at prophase of mitosis? B) what will be the # of chromosomes present in a somatic cell at prophase 2 of meiosis?arrow_forward
- imagine a giraffe whose diploid is 30. A)Under what circumstances would the giraffe go through a process of meiosis? . b) what will be the final result of this meiosis for the giraffe (# of cells + # of chromosomes/cells)arrow_forwardIn human spermatogenesis, mitosis of a stem cell gives rise to one cell that remains a stem cell and one cell that becomes a spermatogonium. (a) Draw four rounds of mitosis for a stem cell, and label the daughter cells. (b) For one spermatogonium, draw the cells it would produce from one round of mitosis followed by meiosis. Label the cells, and label mitosis and meiosis. (c) Explain what would happen if stem cells divided like spermatogonia.arrow_forwardAn error occurred during meiotic cell division, and a human egg has an extra copy of chromosome 21. That egg was fertilized by a normal sperm to create an embryo. This would lead to an individual A) who was tetraploid B) who would be normal in chromosomal number C) who had trisomy D) who was triploidarrow_forward
- Draw a diagram of four stages of Meiosis I in a hypothetical animal cell having six chromosomes.arrow_forwardA diploid male organism has two homologous chromosomes. A and B are from its maternal parent, while A’ and B’ are from its paternal parent. Draw the chromosomes at the following stages: a, anaphase of mitosis b. anaphase of the first meiotic division c, anaphase of the second meiotic division If the same chromosomes were involved in meiosis in a female, would the kind of egg nuclei produced be different from the sperm nuclei? Why?arrow_forwardIn a description of meiosis the terms ‘chromosome’ and ‘chromatid’ may be used. Distinguish between these two terms. There are 56 chromosomes in a mature elephant cell. If one of the elephants cells responsible for gamete production undergoes meiosis, how many chromosomes would be present in each cell after meiosis I, and then after meiosis II. Explain your reasoning.arrow_forward
- When does crossing over usually occur, and what is the endresult?a. It occurs during prophase of meiosis I, and the end result isthe exchange of pieces between homologouschromosomes.b. It occurs during prometaphase of meiosis I, and the endresult is the exchange of pieces between homologouschromosomes.c. It occurs during prophase of meiosis I, and the end result isthe separation of sister chromatids.d. It occurs during prometaphase of meiosis I, and the endresult is the separation of sister chromatids.arrow_forward1. Your father received 23 chromosomes from his mother and 23 chromosomes from his father. How many of your paternal grandfather’s chromosomes did you receive? 2. Enlargement of the spermatogonium and oogonium can be observed in the period of maturation. True or False? 3. Why do gametes contain one of each kind of chromosome? a. Crossing over occurs during prophase I. b. Only one replication of DNA occurs during meiosis. c. The homologous chromosome separate during meiosis. d. The parental cells contain only one of each kind of chromosome. 4. In what period wherein prolonged prophase is the particular process involved? a. period of growth b. 1st reduction division c. period of multiplication d. 2nd reduction division 5. If a cell has 12 chromosomes, how many chromosomes will each of the daughter cells have after mitosis? 6. Somatic cells contain haploid number of chromosomes and undergo mitosis. True or Flase? 7. In which of the following period wherein primary ovocytes are produced?…arrow_forwardHow many sets of human chromosomes are in each of the following cell types? a. an oogonium b. a primary spermatocyte c. a spermatid d. a cell from either sex during anaphase of meiosis I e. a cell from either sex during anaphase of meiosis II f. a secondary oocyte g. a polar body derived from a primary oocytearrow_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