Biology: The Dynamic Science (MindTap Course List)
4th Edition
ISBN: 9781305389892
Author: Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher: Cengage Learning
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Chapter 22, Problem 6TYK
Summary Introduction
Introduction:
The number of chromosomes and their structure also contribute to the
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Which of the following is a FALSE statement regarding human chromosomes?
A.
The chromosome number in humans is 2n=46.
B.
Gametes have half number of the chromosomes as in somatic cells.
C.
There are 22 pairs of autosomes and 2 sex chromosomes.
D.
Liver cells can be polyploids. They can have 23, 46, 69 or 92 chromosomes.
Which of the following statements does
not correctly describe the
characteristics of homologous
chromosomes?
Select one:
a. They have the centromeres located a
the same spot.
b. They contain identical alleles.
c. They contain the same genes.
d. The size and shape of the
chromosomes are the same.
In animals, which of the following distinguishes meiosis from mitosis?
a. Meiosis is a form of asexual division, whereas mitosis is a form of sexual division.
b. In mitosis, single loops of DNA are copied, whereas meiosis involves multiple linear chromosomes.
O c. Mitosis is used for the repair of cells, whereas meiosis creates cells for sexual reproduction.
d. Mitosis occurs in prokaryotic cells, whereas meiosis occurs in eukaryotic cells.
Chapter 22 Solutions
Biology: The Dynamic Science (MindTap Course List)
Ch. 22.1 - How do the morphological, biological, and...Ch. 22.1 - What is clinical variation?Ch. 22.2 - What is the difference between prezygotic and...Ch. 22.2 - Prob. 2SBCh. 22.3 - Prob. 1SBCh. 22.3 - Why might insects from different host races be...Ch. 22.4 - Prob. 1SBCh. 22.4 - Prob. 2SBCh. 22 - The biological species concept defines species on...Ch. 22 - Prob. 2TYK
Ch. 22 - A characteristic that exhibits smooth changes in...Ch. 22 - Prezygotic is isolating mechanisms: a. reduce the...Ch. 22 - In the model of allopatric speciation, the...Ch. 22 - Prob. 6TYKCh. 22 - If two species of holly (genus Ilex) flower during...Ch. 22 - Prob. 8TYKCh. 22 - An animal breeder, attempting to cross a llama...Ch. 22 - Prob. 10TYKCh. 22 - Apply Evolutionary Thinking How do human...Ch. 22 - Prob. 12TYKCh. 22 - Prob. 13TYKCh. 22 - Prob. 14TYKCh. 22 - Prob. 15TYKCh. 22 - David Hills of Baylor University noted that three...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Which of the following statements is false? A. Humans have 1 pair of sex chromosomes B. Humans have 46 chromosomes C. Sex chromosomes are considered a homologous pair D. Humans have 23 pairs of chromosomes E. Humans have 22 autosomesarrow_forwardExplainarrow_forwardA research scientist is studying diseases associated with homologous chromosomes and notices that the same gene along the chromosome has different function what can you conclude about his findings? A. The homologous pairs have been recombined and therefore he is studying end joining of chromosomes B. He is studying sex chromosomes and the differences are because the chromosomes are from a male species organism C. He has identified different alleles among homologous chromosomes. D. He is studying basic chromosome remodeling during fertilzationarrow_forward
- According to the Lyon hypothesis,a. one of the X chromosomes is converted to a Barr body insomatic cells of female mammals.b. one of the X chromosomes is converted to a Barr body in allcells of female mammals.c. both of the X chromosomes are converted to Barr bodies insomatic cells of female mammals.d. both of the X chromosomes are converted to Barr bodies inall cells of female mammals.arrow_forwardEvery chimpanzee somatic cell contains 48 chromosomes, in which genes are localized. How many genes linkage groups are there in a chimpanzee somatic cell? Select one: a. 48 O b. 24 O c. 12 O d. 6 O e. 2arrow_forwardHumans with aneuploidy who survive usually have incorrect numbersof chromosome 13, 18, or 21 or the sex chromosomes. A possibleexplanation why these abnormalities permit survival is becausea. the chromosomes have clusters of genes that aid in embryonicgrowth.b. the chromosomes are small and carry relatively few genes.c. of X-chromosome inactivation.d. of both b and c.arrow_forward
- Which of the following statements is true? a. Linear chromosome structures observed in a karyotype are actually pairs of sister chromatids. b. Prokaryotic and eukaryotic cells divide through binary fission. c. Because chromosomes of prokaryotes are smaller than eukaryotic chromosomes, prokaryotic nuclei are also smaller. d. The genetic information found in a eukaryotic chromosome makes up the cell's entire genome.arrow_forwardWhich of the following best describes the concept of independent assortment? Group of answer choices a. 2n, where n = number of chromosomes b. Gametes receive one of each chromosome pair but which chromosome it receives is decided randomly c. Refers to the Mendelian genetics d. Independent assortment always occurs at prophase 2 in eukaryotic organisms. e. Is the process of specified segregation and assortment of chromosomes in an organism.arrow_forwardWhat is a main difference between onion root tip (plant cell) mitosis and whitefish blastula (animal cell) mitosis? A. The DNA is animal cells is inside of a nucleus but there is no nucleus in plant cells. B. A cleavage furrow is not formed in plant cells due to the rigid cell wall. C. Plant cells do not have DNA and animal cells do. D. Plant cells have undergo prophase where they condense their chromosomes but animal cells skip this step.arrow_forward
- Which of the following is correct as the polyploidization mechanism? options: A, Two related species mate, forming an organism with the combined chromosomes from both parents. B. A single-celled embryo duplicates its chromosomes, but they are not separated into separate cells and remain in a single cell that develops into a viable embryo. C. Both A and B D. Neither A nor Barrow_forwardCan chromosome duplications cause negative effects to an organism? Why or why not? A. No. Duplicated regions of chromosomes are quickly lost by looping out during meiosis. B. Yes. Duplicated regions increase gene dosage, which affects processes like development that require specific amounts of protein. C. No. Cells with duplications function even more efficiently than those without duplications. D. No. Duplicated regions of chromosomes cannot affect gene dosage because the cell can always compensate for extra copies of genes. E. Yes. Duplicated regions require DNA to be replicated, which delays the cell cycle and wastes energy.arrow_forwardWhich of the following best describes Klinefelter syndrome? A. It is an example of aneuploidy. B. Affected individuals are males with low fertility. C. Only one X chromosome is active in these individuals. D. All of the above.arrow_forward
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