Masteringbiology With Pearson Etext -- Standalone Access Card -- For Human Biology Format: Access Card Package
8th Edition
ISBN: 9780134326733
Author: Johnson, Michael D.
Publisher: Prentice Hall
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Chapter 17, Problem 13TY
Summary Introduction
Introduction:
Meiosis is the process that occurs in reproductive cell or gamete. Meiosis is a reductive division that is the chromosome number of the cell reduces by half during meiosis. Also, during meiosis 1 crossing over takes place.
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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.
Humans produce skin cells by mitosis and gametes by meiosis. Which of the following statements about the nuclei of skin cells is correct?
a. They contain half as much DNA as the nuclei of gametes produced by meiosis.
b. They contain four times as much DNA as the nuclei of gametes produced by meiosis.
c. They contain the same amount of DNA as the nuclei of gametes produced by meiosis.
d. They contain twice as much DNA as the nuclei of gametes produced by meiosis.
A) 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?
Chapter 17 Solutions
Masteringbiology With Pearson Etext -- Standalone Access Card -- For Human Biology Format: Access Card Package
Ch. 17 - How do you feel about the creation and then...Ch. 17 - How far should we go–to what lengths and at what...Ch. 17 - Describe how DNA is replicated before cell...Ch. 17 -
2. Compare and contrast the processes of...Ch. 17 - Explain what mutations are and the role of DNA...Ch. 17 - Name the four phases of mitosis and describe...Ch. 17 -
5. Explain why only one large egg is formed...Ch. 17 - Describe what is meant by selective gene...Ch. 17 - Explain how factors present in the environment can...Ch. 17 - Describe how ribosomes contribute to the formation...
Ch. 17 - Prob. 9CRCh. 17 - Prob. 10CRCh. 17 - What would be the outcome if a cell completed...Ch. 17 - Prob. 2TYCh. 17 - Prob. 3TYCh. 17 - Prob. 4TYCh. 17 - Which of the following are listed in order from...Ch. 17 - Prob. 6TYCh. 17 - Which is likely to be the shortest chain of...Ch. 17 - How many different amino acids could be encoded if...Ch. 17 - Prob. 9TYCh. 17 - Why do cells within an organism differentiate,...Ch. 17 - Which method of cloning is most similar to the way...Ch. 17 - Prob. 12TYCh. 17 - Prob. 13TYCh. 17 - Prob. 14TYCh. 17 -
15. How does the production of sperm differ from...Ch. 17 - Prob. 1AWKCh. 17 - Prob. 2AWKCh. 17 - Prob. 3AWKCh. 17 - Prob. 4AWKCh. 17 - Mitochondria contain their own DNA that is...Ch. 17 - Bacteria can reproduce by simple cell division....
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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
- Which statement about meiosis (in humans) is FALSE? Select one: a. It reduces the amount of genetic material (chromosomes) by half b. It is part of the process of sexual reproduction c. The cells it produces are identical to each other d. It produces haploid gametes e. It occurs only in germline cells of the reproductive organsarrow_forwarda. 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.arrow_forwardThe dividing cells shown in the picture would be in _?_ of _?_. Assume that the starting cell was diploid and it was 2n=4. A. Metaphase, mitosis B. Metaphase, meiosis I C. Metaphase, meiosis II D. Anaphase, meiosis I E. Anaphase, mitosisarrow_forward
- How do cells after meiosis compare with cells that are in the prophase of meiosis I?A) The cells have half the number of chromosomes and one-fourth the amount of DNA.B) The cells have the same number of chromosomes and half the amount of DNA.C) The cells have half the number of chromosomes and half the amount of DNA.D) The cells have half the amount of cytoplasm and twice the amount of DNA.arrow_forwardAt the end of meiosis in humans, four gametes are produced that are: A. Genetically identical to each other and to the parent cell B. Genetically identical to each other but genetically different from the parent cell C. Genetically different from each other and the parent cell D. Genetically identical to the parent cell from different from each otherarrow_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_forward
- Even though the processes are very similar, mitosis and meiosis are two very distinct processes. What is the difference between meiosis and mitosis? a. Mitosis results in two identical sister cells genetically identical to the original parent cell, while meiosis also starts with diploid but results in haploid cells. b. Mitosis only occurs in plants and single cell organisms, while meiosis only occurs in animals. c. Mitosis starts with diploid but results in haploid cells, while meiosis results in two identical sister cells genetically identical to the original parent cell.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_forwardThe cells produced at the end of Meiosis are not genetically identical. Why is this important?arrow_forward
- Draw a diagram of four stages of Meiosis I in a hypothetical animal cell having six chromosomes.arrow_forwardDiploid cells have a. two chromosomes.b. two sets of chromosomesc. one set of chromosomes.d. two pairs of homologous chromosomesarrow_forwardA) Hoe many cells are produced by the end of meiosis II? B) Are the cells produced at the end of meiosis II haploid or diploid? C) Are the chromosomes of the four final meiotic products replicated or nonreplicated?arrow_forward
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