Biology
12th Edition
ISBN: 9780134813448
Author: Audesirk, Teresa, Gerald, Byers, Bruce E.
Publisher: Pearson,
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Chapter 10, Problem 2MC
Summary Introduction
Introduction:
“Polyploidy” is a condition in which multiple copies of chromosomes are present in the genome. The chromosome number is more than
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The 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.
These items separate from each other during anaphase 2 of meiosis. a. Sister chromatids
b. Homologous chromosome
c. Genes
d. The two parts of a cell
What is the main difference between autopolyploid and allopolyploid? a. the number of chromosomes b. the functionality of the chromosomes c. the source of the extra chromosomes d. the number of mutations in the extra chromosomes
Chapter 10 Solutions
Biology
Ch. 10.1 - Prob. 1CSCCh. 10.1 - Prob. 1CYLCh. 10.1 - Prob. 2CYLCh. 10.1 - Prob. 3CYLCh. 10.2 - What would be the consequences for the resulting...Ch. 10.2 - What would be the genetic consequences for the...Ch. 10.2 - Prob. 1CSCCh. 10.2 - describe the steps and outcome of meiotic cell...Ch. 10.2 - Prob. 2CYLCh. 10.3 - explain how meiosis and sexual reproduction...
Ch. 10.4 - Prob. 1HYEWCh. 10.4 - Prob. 1CYLCh. 10.4 - describe some of the human genetic disorders that...Ch. 10.4 - Prob. 1TCCh. 10 - Prob. 1MCCh. 10 - Prob. 2MCCh. 10 - Prob. 3MCCh. 10 - Prob. 4MCCh. 10 - Prob. 5MCCh. 10 - Meiotic cell division produces ________ (how many)...Ch. 10 - During ___________ of meiosis 1, paired homologous...Ch. 10 - Prob. 3FIBCh. 10 - Prob. 4FIBCh. 10 - Prob. 5FIBCh. 10 - Prob. 1RQCh. 10 - Prob. 2RQCh. 10 - Prob. 3RQCh. 10 - Describe how meiosis provides for genetic...Ch. 10 - Define nondisjunction, and describe common...Ch. 10 - Many plants car. reproduce sexually or asexually....
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- Consider a diploid cell from an unknown organism that undergoes meiosis. The four gametes produced have 8, 8, 7, and 5 chromosomes. When did nondisjunction occur? a.Meiosis I and II b.Only meiosis I c.Mitosis d.Only meiosis II e.Nondisjunction did not occurarrow_forwardWhat 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.arrow_forwardAn error occurred during meiotic cell division, and a human egg has an extra copy of chromosome 21. That egg was fertilized by a normal sperm to create an embryo. This would lead to an individual A) who was tetraploid B) who would be normal in chromosomal number C) who had trisomy D) who was triploidarrow_forward
- In comparing somatic cells and gametes, somatic cells are a. diploid with half the number of chromosomes. b. haploid with half the number of chromosomes. c. diploid with twice the number of chromosomes. d. haploid with twice the number of chromosomes.arrow_forwardDiploid cells have a. two chromosomes.b. two sets of chromosomesc. one set of chromosomes.d. two pairs of homologous chromosomesarrow_forwardWhat is a balanced gamete? A).A gamete that does not contain any chromosomes with inversions B.)A gamete with normal dosages of all genes C.)A gamete with two sets of homologous chromosomes D.)A gamete with two sex chromosomesarrow_forward
- What cellular process is responsible for genetic recombination? a. The independent alignment of homologous pairs during meiosis I b. Separation of the homologues in meiosis I c. Separation of the chromatids during meiosis II d. Crossing over between homologuesarrow_forwardWhen does synapsis between homologous chromosomes occur? A. prophase I of meiosis B. prophase II of meiosis C. prophase of mitosis D. metaphase of mitosisarrow_forwardWhat is the function of the kinetochore during mitosis?a. It promotes the attachment of monads to each other toform a dyad.b. It is a location where a kinetochore microtubule can attachto a chromosome.c. It promotes the condensation of chromosomes duringprophase.d. Both a and b are correct.arrow_forward
- A. Aneuploidy refers to the loss or gain a chromosome part. B. Polyploid cells have extra chromosome sets. A) Both statement is correct B) Both statement is incorrect C) First statement is correct, Second is incorrect D) First statement is incorrect, Second is correctarrow_forwardHomologous chromosomes move toward opposite poles of a dividing cell during a. fertilization b. meiosis II c. meiosis I d. mitosisarrow_forwardThe somatic cells of an allotetraploid containa. one set of chromosomes from four different species.b. two sets of chromosomes from two different species.c. four sets of chromosomes from one species.d. one set of chromosomes from two different species.arrow_forward
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