Campbell Biology: Concepts & Connections (8th Edition)
8th Edition
ISBN: 9780321885326
Author: Jane B. Reece, Martha R. Taylor, Eric J. Simon, Jean L. Dickey, Kelly A. Hogan
Publisher: PEARSON
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Textbook Question
Chapter 8, Problem 6TYK
If a fragment of a chromosome breaks off and then reattaches to the original chromosome but in the reverse direction, the resulting chromosomal abnormality is called
a. a deletion.
b. an inversion.
c. a translocation.
d. a nondisjunction.
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Students have asked these similar questions
In which of the following is genetic material moved betweennonhomologous chromosomes?a. insertion d. translocationb. nondisjunction e. inversionc. deletion
Under the influence of gamma-radiation a fragment of the chromosome was lost. What chromosomal mutation is it?
Select one:
a. Deletion.
b. Duplication.
c. Inversion.
d. Intrachromosomal translocation.
O e. Interchromosomal translocation.
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.
Chapter 8 Solutions
Campbell Biology: Concepts & Connections (8th Edition)
Ch. 8 - Complete the following table to compare mitosis...Ch. 8 - If an intestinal cell in a grasshopper contains 24...Ch. 8 - Which of the following is not a function of...Ch. 8 - It is difficult to observe individual chromosomes...Ch. 8 - A fruit fly somatic cell contains 8 chromosomes....Ch. 8 - If a fragment of a chromosome breaks off and then...Ch. 8 - Which of the following phases of mitosis is...Ch. 8 - A biochemist measured the amount of DNA in cells...Ch. 8 - A micrograph of a dividing cell from a mouse...Ch. 8 - Cytochalasin B is a chemical that disrupts...
Ch. 8 - Why are individuals with an extra chromosome 21,...Ch. 8 - In the light micrograph below of dividing cells...Ch. 8 - An organism called a plasmodial slime mold is one...Ch. 8 - Prob. 14TYKCh. 8 - Discuss the factors that control the division of...Ch. 8 - Compare cytokinesis in plant and animal cells. In...Ch. 8 - Sketch a cell with three pairs of chromosomes...Ch. 8 - Suppose you read in the newspaper that a genetic...Ch. 8 - Bacteria are able to divide on a faster schedule...Ch. 8 - Prob. 20TYKCh. 8 - A mule is the offspring of a horse and a donkey. A...Ch. 8 - Prob. 22TYK
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- "If a fragment of a chromosome breaks off and then reattaches to the original chromosome but in the reverse direction, the resulting chromosomal abnormality is called a translocation." The above statement is True or False? and Explainarrow_forwardWhich types of chromosome mutations a. increase the amount of genetic material in a particular chromosome? b. increase the amount of genetic material in all chromosomes? c. decrease the amount of genetic material in a particular chromosome? d. change the position of DNA sequences in a single chromosome without changing the amount of genetic material? e. move DNA from one chromosome to a nonhomologous chromosome?arrow_forwardWhy are individuals with an extra chromosome 21, that causes Down syndrome, more numerous than individuals with an extrachromosome 3 or chromosome 16? A.] There are probably more genes on chromosome 21 than on the others B.] Chromosome 21 is a sex chromosome and chromosomes 3 and 16 are not C.] Down syndrome is not more common, just more serious D.] Extra copies of the other chromosomes are probably fatalarrow_forward
- When recombination (“crossing over”) doesn’t happen correctly, what type(s) of mutations that can occur? circle all that apply Select one or more: a. Inversion (reversal or “flipping” of part of a chromosome) b. Duplication of part of a chromosome c. Translocation (transfer of part of a chromosome to a non-homologous chromosome) d. Deletion of part of a chromosomearrow_forwardAltered chromosome structure can drastically affect an individual organism’s phenotype. However, some types of chromosomal rearrangements are more likely to be harmful than others. Categorize the following types of rearrangements from MOST LIKELY to be harmful to LEAST LIKELY to be harmful. A. reciprocal translocation, deletion, translocation B. deletion, translocation, inversion C. inversion, translocation, reciprocal translocation D. translocation, inversion, duplicationarrow_forwardWhich statement about homologous chromosomes is FALSE? Select one: a. They contain the same genes in the same places along the length of the chromosome b. One member of the homologous pair came from your mother, the other from your father c. For a particular gene, one member of the pair may have one allele, while the other has a different allele d. They are joined together at the centromere as the two halves of the typical X-shaped chromosomearrow_forward
- A patient has mental deficiency, a short stature, and the mongolian type of the eyelid fold. The microscopical examination of the patient's karyotype revealed the presence of trisomy on the 21-st chromosome. What do we call the disease which is caused by this chromosomal abnormality? Select one: a. Down's syndrome. b. Klinefelter's syndrome. O c. Turner's syndrome. d. Edward's syndrome. e. Patau syndrome.arrow_forwardHow is homologous recombination for DNA repair different from recombination in meiosis? Choose all correct answers. a. HR in DNA repair requires a double-strand break, but meiotic recombination does not. b. HR in DNA repair requires strand invasion, but meiotic recombination does not. c. HR in DNA repair results in identical chromosomes. Meiotic recombination results in changes to the DNA sequence of the "repaired" chromosomes. d. HR in DNA repair uses a newly synthesized identical chromosome as a template. Meiotic recombination uses a homologous chromosome as a template.arrow_forwardThis is a chromosomal disorder resulting from the non-disjunction of chromosome 21 during anaphase that gives an extra copy of the chromosome to the person who has inherited it.arrow_forward
- During crossing over,a. chromatids of homologous chromosomes exchange parts.b. mutations occur with higher than average frequency.c. chromatids of nonhomologous chromosomes exchange parts.d. nondisjunction occurs.arrow_forwardFor items 1-10, refer to the choices below: a. Williams Syndrome b. Cri-Du-Chat Syndrome c. Pallister-Killian Syndrome d. Wolf-Hirschhorn Syndrome 1. Caused by a deletion in chromosome 5. 2. Has bulging, wide-set eyes. 3. Has hypertelorism. 4. Caused by an isochromosome. 5. Caused by the deletion of multiple genes on chromosome 7. 6. About 30% of the people with this disorder are autistic. 7. They have an elf-like face. 8. Has a high chance of having scoliosis. 9. White starburst pattern around the irisarrow_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
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