Biology: The Unity and Diversity of Life (MindTap Course List)
14th Edition
ISBN: 9781305073951
Author: Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher: Cengage Learning
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Chapter 12, Problem 8SQ
Summary Introduction
Introduction: Cell division is the process where the cells divide to produce two or more daughter cells. There are mainly two types of cell division, namely Mitosis and Meiosis. Mitosis involves the division of a single cell into two identical daughter cells. Meiosis involves the production of the sex cells-sperms and eggs. This process involves the division of a single cell twice to produce four daughter cells, which exactly contains half the original chromosomes. There are two phases of meiosis, namely meiosis I and meiosis II.
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What defines a diploid cell?
A. A cell with two sets of chromosomes
B. A cell with four sets of chromosomes
C. A cell with three sets of chromosomes
D. A cell with one set of chromosomes
Which of the following is/are reason(s) that sells an organism would undergo mitosis?
A. During organismal growth(for multicellular organisms).
B. During wound heal.
C. When mutation develop in genes that caused the cell to self-destruct.
D. To make haploid gametes.
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.
Chapter 12 Solutions
Biology: The Unity and Diversity of Life (MindTap Course List)
Ch. 12 - One evolutionary advantage of sexual over asexual...Ch. 12 - Meiosis is a necessary part of sexual reproduction...Ch. 12 - Meiosis _________. a. occurs in all eukaryotes b....Ch. 12 - Sexual reproduction in animals requires ______. a....Ch. 12 - Meiosis ______ the parental chromosome number. a....Ch. 12 - Dogs have a diploid chromosome number or 78. How...Ch. 12 - The cell in the diagram to the right is in...Ch. 12 - Prob. 8SQCh. 12 - Prob. 1DAACh. 12 - Prob. 2DAA
Ch. 12 - Prob. 3DAACh. 12 - Prob. 9SQCh. 12 - Crossing over mixes up ______. a. chromosomes b....Ch. 12 - Crossing over happens during which phase of...Ch. 12 - Which of the following is one of the very...Ch. 12 - Match each term with the best description. __...Ch. 12 - ________ contributes to variation in traits among...Ch. 12 - The diploid chromosome number for the body cells...Ch. 12 - In your own words, explain why sexual reproduction...Ch. 12 - Different populations of the tiny freshwater...Ch. 12 - Make a simple sketch of meiosis in a cell with a...
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- Which type of life cycle has both a haploid and diploid multicellular stage? a. an asexual life cycle b. diploid-dominant c. haploid-dominant d. alternation of generationsarrow_forwardThe term endopolyploidy refers to the phenomenon of havinga. too many chromosomes.b. extra chromosomes inside the cell nucleus.c. certain cells of the body with extra sets of chromosomes.d. extra sets of chromosomes in gametes.arrow_forwardWhich of the following is not a reason for mitosis? A. Keep cells small B. Replace damaged cells C. Produce new genes and traits D. Growth of organismsarrow_forward
- Diploid cells have a. two chromosomes.b. two sets of chromosomesc. one set of chromosomes.d. two pairs of homologous chromosomesarrow_forwardSexual reproduction involves an organism (A.) growing from body parts that are cut or broken off the parent. (B.) being produced through a unique combination of DNA from two gametes. (C.) generating an identical offspring on the surface of its own body. (D.) replicating its DNA before dividing in half to produce two organisms.arrow_forwardThe process by which haploid cells are produced from diploid cells is called A( sexual reproduction. B) meiosis C) gameoto reduction D) mitosisarrow_forward
- In unicellular organisms, mitosis helps in asexual reproduction as it produces an identical copy of the parent cell. Which of the following organisms reproduce through mitosis? A. Bacteria B. Frog C. Hydra D. Sea anemones Which of the following does NOT signifies the application of mitosis? A. Production of sperms and eggs. B. An amoeba reproduces through binary fission while hydra and yeast reproduce through budding. C. You become taller because the bone cells continue to undergo mitosis D. All the daughter cells resulting from the multiple cell divisions will make up the body of the human. Dolly is the first mammal to have been successfully cloned from an adult cell Which of the following statement/s is/are most relevant to the birth of Dolly? I. It suggests that human could be cloned. II. It proves that specialized cells could be used to create an exact copy of the animal they came from. III. It improves the production of milk, meat, and other products from livestock. IV. It…arrow_forwardWhy is there a need to produce diploid type of cell at the of cell division? a.)So that the cells produced are exact copy of the parent cell b.)So that abnormalities of the cell will be avoided c.)So that the purpose of growth happens in the organism d.)So that the copy of DNA is retainedarrow_forwardThe term haploid refers to: a. having one set of each type of chromosome b. the 2n condition c. having two sets of each type of chromosome d. the chromosome content of skin cells ...explain your answerarrow_forward
- In humans, sexual reproduction that produces an embryo, which then develops into a fetus, requires: a. Neither mitosis or meiosis b. Mitosis c. Both mitosis and meiosisarrow_forwardWhat is one way in which all eukaryotic cells and all prokaryotic cells are similar? a. They reproduce sexually b. They both have ribosomes. b. They are roughly the same size. c. They are contained in a cell membrane. d. They share the same kinds of organelles.arrow_forwardMitosis leads to ... A.)identical (or nearly identical) cells B.)four unique gametes C.)one cell with double the normal number of chromosomes D.)two genetically diverse cellsarrow_forward
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