Campbell Biology in Focus; Modified Mastering Biology with Pearson eText -- ValuePack Access Card -- for Campbell Biology in Focus (2nd Edition)
Campbell Biology in Focus; Modified Mastering Biology with Pearson eText -- ValuePack Access Card -- for Campbell Biology in Focus (2nd Edition)
2nd Edition
ISBN: 9780134433776
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman
Publisher: PEARSON
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Chapter 36, Problem 9TYU

(a)

Summary Introduction

To draw:

Four rounds of mitosis of the stem cell.

Concept introduction:

Spermatogenesis is the process where sperm cells are produced through the meiosis of the spermatogonium. Stem cells are the undifferentiated cells which can give rise to every type of cell it is found with and in the process it also gives rise to another stem cell.

(b)

Summary Introduction

To draw:

Single mitosis followed by meiosis of a spermatogonium.

Concept introduction:

Spermatogenesis is the process where sperm cells are produced through the meiosis of the spermatogonium. Stem cells are the undifferentiated cells which can give rise to every type of cell it is found with and in the process it also gives rise to another stem cell.

(c)

Summary Introduction

To determine:

What would happen if the stem cell divides like the spermatogonium.

Concept introduction:

Spermatogenesis is the process where sperm cells are produced through the meiosis of the spermatogonium. Stem cells are the undifferentiated cells which can give rise to every type of cell it is found with and in the process it also gives rise to another stem cell.

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Mitosis differs from meiosis in the following ways EXCEPT:(a) Mitosis results in a full complement of chromosomesin two cells, whereas meiosis results in four cells havinghalf the number of chromosomes.(b) In mitosis, all chromosomes are replicated, whereas inmeiosis, only half are replicated.(c) Mitosis only occurs in somatic or body cells, whereasmeiosis occurs in production of gametes or sex cells.(d) None of the above.(e) a and c only
The two homologs of a pair move toward opposite poles ofdividing cell during(A) mitosis.(B) meiosis I.(C) meiosis II.(D) fertilization.
Meiosis in males produces four spermatids, each of which contains: (a) 23 chromosomes. (b) 23 pairs of chromosomes. (c) the diploid number of chromosomes. (d) 46 pairs of chromosomes.
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