Principles of Biology
2nd Edition
ISBN: 9781259875120
Author: Robert Brooker, Eric P. Widmaier Dr., Linda Graham Dr. Ph.D., Peter Stiling Dr. Ph.D.
Publisher: McGraw-Hill Education
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Question
Chapter 14.4, Problem 2TYK
Summary Introduction
Introduction:
The chromosomes are the condensed structure of the DNA. They are X shaped and contain different DNA segments. Each chromosome has different genes and all the chromosomes in the organism makes up the genome.
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Which of the following is described as a structural rearrangement of a chromosome in which a broken piece has become reattached in the wrong location?
Translocation
Duplication
Inversion
Deletion
Which of the following is an example of a balanced mutation?
Group of answer choices
inversions
deletions
aneuploidy
tandem duplications
A chromosome territory is a region
along a chromosome where many genes are clustered.
along a chromosome where the nucleosomes are close together.
in a cell nucleus where a single chromosome is located.
in a cell nucleus where multiple chromosomes are located.
Chapter 14 Solutions
Principles of Biology
Ch. 14.1 - Researchers usually treat cells with drugs that...Ch. 14.1 - Researchers usually treat cells with drugs that...Ch. 14.1 - Refer back to Figure 13.13. How do checkpoint...Ch. 14.1 - A cell that is diploid has two chromosomes. pairs...Ch. 14.1 - In eukaryotes, DNA replication produces sister...Ch. 14.1 - Prob. 3TYKCh. 14.2 - Refer back to the karyotype in Figure 14.1. In...Ch. 14.2 - What are the functions of the three types of...Ch. 14.2 - Prob. 1TYKCh. 14.2 - Prob. 2TYK
Ch. 14.2 - Sister chromatids separate from each other during...Ch. 14.2 - With regard to chromosome composition, how does...Ch. 14.3 - Prob. 1CCCh. 14.3 - Prob. 2CCCh. 14.3 - What is the main reason for meiosis in animals?...Ch. 14.3 - In meiosis I, crossing over occurs during...Ch. 14.3 - Prob. 2TYKCh. 14.3 - Prob. 3TYKCh. 14.4 - Prob. 1CCCh. 14.4 - A chromosome in which the telomere is at one end...Ch. 14.4 - Prob. 2TYKCh. 14.4 - Prob. 3TYKCh. 14 - Prob. 1TYCh. 14 - Prob. 2TYCh. 14 - Checkpoints during the cell cycle are important...Ch. 14 - Prob. 4TYCh. 14 - Prob. 5TYCh. 14 - Prob. 6TYCh. 14 - Prob. 7TYCh. 14 - Prob. 8TYCh. 14 - Prob. 9TYCh. 14 - Prob. 10TYCh. 14 - Distinguish between homologous chromosomes and...Ch. 14 - The Oca2 gene, which influences eye color in...Ch. 14 - PRINCIPLES A principle of biology is that cells...Ch. 14 - Why is it necessary for chromosomes to condense...
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- A chromosomes structure can be altered by _______. a. deletions b. duplications c. translocations d. all of the abovearrow_forward• Deletions remove _______________from a chromosome and causemutant phenotypes mainly through effects on gene dosage.arrow_forwardchromosome loss resultsin mosaics; that is, organisms with some normal cellsand some _______ cells.arrow_forward
- The karyotype consists of the number and structure of the chromosomes.How do changes in the karyotype evolve?arrow_forwardThere are pieces of DNA that readily change their position from one chromosome to another. These are called .arrow_forwardMetacentric chromosomes have a centromere located: A. near the middle of the chromosome (chromosome has two arms of approx. equal length) B. towards one end (chromosome has one long arm and one short arm) C. near one end of the chromosome (chromosome has one long arm and a knob at the other end)arrow_forward
- In which of the following ways do polytene chromosomes differ from other chromosomes? Polytene chromosomes are multiple copies of identical single-stranded DNA. Polytene chromosomes can only be found in bacteria. Polytene chromosomes are replicated but not separated. Polytene chromosomes are fully condensed DNA. Polytene chromosomes represent uncoiled versions of meiotic chromosomes.arrow_forwardWhich region of eukaryotic DNA prevents single-strand breaks and chromosome unraveling, and serves as a signal to DNA repair enzymes that the linear chromosome does not need repairing? the centromere the terminator the promoter the telomere the operatorarrow_forwardChromosome inversion loops occur during meiosis in ______________ . chromosome duplications paracentric inversions reciprocal translocations both paracentric and pericentric inversions pericentric inversionsarrow_forward
- Pick the statement about chromosome structure that is FALSE. Gene duplications provide an explanation for the origin of gene families. A position effect occurs when a gene’s expression is altered by virtue of a change in its chromosomal position. Inversions decrease the frequency of recombinate gametes. A paracentric inversion is one whose break points include the centromere. Genes that function abnormally when present in only one copy are called haploinsufficient.arrow_forwardWhich of the following is correct regarding polytene chromosomes? options: A. Exposure to a sublethal dose of X-rays causes spontaneous mutations. B. Polytene chromosomes have been useful to observe specific bands correlated with individual genes. C. Both A and B D. None of the abovearrow_forwardWhich of the following is characteristics of an acrocentric chromosome?1.centromere is closer to one end of the chromosome producing one long arm and one short arm 2. There is more than one centromere 3. Centromere is the center of the chromosome 4.centromere is at the very end of the chromosomearrow_forward
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