Life: The Science of Biology
11th Edition
ISBN: 9781319010164
Author: David E. Sadava, David M. Hillis, H. Craig Heller, Sally D. Hacker
Publisher: W. H. Freeman
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Question
Chapter 11.4, Problem 1R
Summary Introduction
To review:
The process of fertilization that produces a diploid organism with respect to the chromosomes and to know that the cell is diploid.
Introduction:
Haploid cells are those cells that have a single copy of chromosomes (n) inside the nucleus. They only contain half of the chromosomes. The diploid cells have two whole sets of chromosomes (2n). For instance, the muscle and skin cells are diploid, whereas the sperm and ovum are haploid cells.
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Check out a sample textbook solutionStudents have asked these similar questions
What kinds of cells would the haploid cells be if meiosis were occurring in a plant? in an animal?
How are germ cells related to an incorrect meiosis process?
If meiosis produce haploid cells, how is the diploid numberrestored for those organisms that spend most of their life cycle in the diploid state?
a. DNA replication
b. reverse transcription
c. synapsis
d. fertilization
Chapter 11 Solutions
Life: The Science of Biology
Ch. 11.1 - Prob. 1RCh. 11.1 - Prob. 2RCh. 11.1 - Prob. 3RCh. 11.2 - Prob. 1RCh. 11.2 - Prob. 2RCh. 11.2 - Prob. 3RCh. 11.2 - Prob. 4RCh. 11.3 - Prob. 1RCh. 11.3 - Prob. 2RCh. 11.3 - Prob. 3R
Ch. 11.3 - Prob. 4RCh. 11.3 - Prob. 5RCh. 11.4 - Prob. 1RCh. 11.4 - Prob. 2RCh. 11.4 - Prob. 3RCh. 11.4 - Prob. 4RCh. 11.5 - Prob. 1RCh. 11.5 - Prob. 2RCh. 11.5 - Prob. 3RCh. 11.5 - Prob. 4RCh. 11.6 - Prob. 1RCh. 11.6 - Prob. 2RCh. 11.6 - Prob. 3RCh. 11.7 - Prob. 1RCh. 11.7 - Prob. 2RCh. 11.7 - Prob. 3R
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- It is possible that an alternative mechanism for generating germ cells could have evolved. Consider meiosis in a germ cell precursor (a cell that is diploid but will go on to make gametes). If the S phase were skipped, which meiotic division (meiosis I or meiosis II) would no longer be required?arrow_forwardMeiosis produces daughter cells. a. two haploid b. two diploid c. four haploid d. four diploidarrow_forwardAre gametes (egg and sperm) in plant cells produced by mitosis or meiosis?arrow_forward
- What would happen to the chromosome number in gametes and offspring if gametes were formed by the mitotic process instead of the meiotic process?arrow_forwardIf gametes had the same number of chromosomes as body cells, and an organism had 24 chromosomes in its body cells, how many chromosomes would it have after three generations? How does this illustrate the necessity of meiosis for gamete formation?arrow_forwardWhy is meiosis called a reduction division process? Explain what is reduced and what is divided.arrow_forward
- Which statement best describes the genetic content of the two daughter cells in prophase II of meiosis? a. haploid with one copy of each gene b. haploid with two copies of each gene c. diploid with two copies of each gene d. diploid with four copies of each genearrow_forwardA cell containing 40 chromatids at the beginning of meiosis would at its completion produce cells containing how many chromosomes?arrow_forwardif a parent cell with a diploid number of 12 or two divide by meiosis each daughter cell would have how many chromosomes?arrow_forward
- Why is meiosis importantarrow_forwardHow many chromosomes does the original parent cells have at the end of meiosis? Are the daughter cells diploid or haploid?arrow_forwardHow 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_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