Study Guide for Campbell Biology
11th Edition
ISBN: 9780134443775
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece, Martha R. Taylor, Michael A. Pollock
Publisher: PEARSON
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Chapter 13, Problem 20TYK
Summary Introduction
Introduction: Reproduction is a process which results in production of new offspring from their parents. Sexual reproduction involves the fusion of male and female gametes to result in a diploid zygote. Sexual reproduction often results in
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The significance of meiosis are as follows:
A. Mutation
D. Formation of gametes
B. Maintenance of chromosome number
C. Genetic information
E. Crossing over
21. Meiosis form gametes that are essential for sexual reproduction.
22. Meiosis switches on the genetic information for the development of gametes.
23. Meiosis maintains the fixed number of chromosomes in sexually reproducing
organisms.
24. It introduces new combination of traits or variations.
25. take place due to irregularities of meiotic division.
The number of chromosomes present in eurkaryotic cells
a. is consistent during the life cycle
b. is haploid among sexually reproducing forms and diploid if the reproduce sexually
c. is double by fertilization and cut in half by meiosis
d. is dependent on the age of the tissue
Which of the following makes sexually reproduced offspring genetically different from their parents?
There might be more than one answer
A. Random fertilization between egg and sperm cells
B. Crossing over during meiosis
C. Independent assortment during gamete formation
31.
Chapter 13 Solutions
Study Guide for Campbell Biology
Ch. 13 - a. How many chromosomes are there in the somatic...Ch. 13 - Prob. 2IQCh. 13 - The following diagrams represent some of the...Ch. 13 - a. How many different assortments of maternal and...Ch. 13 - Label the following diagram to review the terms...Ch. 13 - Describe the key events of the following stages of...Ch. 13 - Create a concept map to help you organize your...Ch. 13 - What does meiosis do? a. It produces haploid cells...Ch. 13 - Asexual reproduction of a diploid organism a. is...Ch. 13 - Homologous chromosomes a. have identical DNA...
Ch. 13 - Which of the following represents a clone? a. a...Ch. 13 - What is a karyotype? a. a genotype of an...Ch. 13 - A reduction in the number of chromosomes per cell...Ch. 13 - In most fungi and some protists, a. Gametes are...Ch. 13 - In the alternation of generations found in plants,...Ch. 13 - A synaptonemal complex would be found during a....Ch. 13 - During meiosis I, a. Homologous chromosomes...Ch. 13 - Compared with one of the four cells produced by...Ch. 13 - Meiosis II is similar to mitosis because a. sister...Ch. 13 - The Texan nine-banded armadillo (Dasypus...Ch. 13 - Which of the following is a key difference between...Ch. 13 - Which of the following is not true of homologous...Ch. 13 - Which of the following statements is not true? a....Ch. 13 - In a species with a diploid number of 6, how many...Ch. 13 - In a sexually reproducing species with a diploid...Ch. 13 - The calculation of offspring in question 18...Ch. 13 - Prob. 20TYKCh. 13 - Which of the following statements describes why or...Ch. 13 - What is the evolutionary significance of bdelloid...
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- 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_forwardWhat two processes are responsible for generating genetic diversity in gametes? Select one or more: a. Independent assortment of homologous chromosomes b. Separation of sister chromatids c. Recombination (“crossing over”) of sister chromatids d. Recombination (“crossing over”) of homologous chromosomesarrow_forwardWhich of the following statements CORRECTLY describes the contribution of sperm to thezygote for most vertebrate species?A. flagella, acrosome vesicle,B. mitochondria, haploid DNAC. centriole, haploid DNAD. acrosome vesicle, mitochondriaarrow_forward
- Which of the following correctly describes the gametes that will form as a result of nondisjunction during anaphase II in a human male? a. Two sperm with 24 chromosomes and two sperm with 22 chromosomes b. Two sperm with 23 chromosomes, one sperm with 22 chromosomes, and one sperm with 24 chromosomes c. Four sperm with 24 chromosomes d. Four sperm with 22 chromosomesarrow_forwardWhy is parthenogenesis in bees considered to be a form of asexual reproduction? Select one: a. The male drone is made from a haploid egg. Fertilization is not part of the process to make a male drone. b. The formation of the original haploid cell was achieved using binary fission. c. Although genetic material is transferred from one cell to another using conjugation, the resulting cells will be identical to each other. d. The haploid male bees were made through the process of meiosis, so they are identical to the parent egg cell.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_forward
- Meiosis ________. a. occurs only in germ cells of animals b. supports growth and tissue repair in multicelled species c. gives rise to genetic diversity among offspring d. is part of the life cycle of all cells.arrow_forwardWhich of the following correctly describes the gametes that will form as a result of nondisjunction during anaphase II in a human male? Select one: a. Two sperm with 24 chromosomes and two sperm with 22 chromosomes b. Two sperm with 23 chromosomes, one sperm with 22 chromosomes, and one sperm with 24 chromosomes c. Four sperm with 24 chromosomes d. Four sperm with 22 chromosomesarrow_forwardWhat is the basis for the tremendous genetic diversity resulting from sexual reproduction?a. independent assortment during gamete productionb. crossing-over and shuffling of linked genes during meiosisc. random fertilizationd. all of these choicesarrow_forward
- Which of the following statements is not correct ? a. Homologous chromosomes are separated during meiosis 1. b. In humans, a primary spermatocyte cell has 92 chromatids c. A null allele is characterized by the complete loss of a gene or its function d. According to the germ line theary all cells (germ line and somatic) cotribute to the next generation e. The lineage of cells that eventually form eggs or sperms is known as germ-line cellsarrow_forwardWhich of the following is UNTRUE with regards to human gametes and their production: A. Female gametes complete Meiosis II only after fertilization B. Polar bodies are the result of asymmetric cytokinesis C. Fetal oocytes are arrested in metaphase II D. Cells fated to become eggs and sperm undergo both mitosis and meiosis E. Meiosis in male yields 4 haploid productsarrow_forwardThe product of meiosis describes the following, except: A. Produces somatic cells B.Genetically distinct from each other. C.Four haploid cells D. Produces gametesarrow_forward
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