Loose-leaf Version for What Is Life? A Guide to Biology 4E & LaunchPad for What is Life? A Guide to Biology 4E (Twelve Month Access)
4th Edition
ISBN: 9781319154639
Author: Jay Phelan
Publisher: W.H. Freeman & Co
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Chapter 8, Problem 9MC
Summary Introduction
Introduction:
Humans have 23 pairs of chromosomes.
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what is the likelihood that a male will inherit a sex-linked mutation on the X chromosome from his father ?
A. 0%
B. 25%
C. 50%
D. 100%
Which 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 chromosome
How many Barr bodies would you expect to see in a human cellcontaining the following chromosomes?
a. XYY
b. XXX
c. XXXX
Chapter 8 Solutions
Loose-leaf Version for What Is Life? A Guide to Biology 4E & LaunchPad for What is Life? A Guide to Biology 4E (Twelve Month Access)
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- How many different combinations of maternal and paternal chromosomes can be packaged in gametes by an organism with a diploid number of 6 (2n=6; n=3) A. 24 B. 8 C. 32 D. 12arrow_forwardIf a diploid cell contains six chromosomes (i.e., three per set), how many possible random arrangements of homologous could occur during metaphase of meiosis I? a. 24 b. 8 c. 6 d. 23arrow_forwardHow many different combinations of maternal and paternal chromosomes can be packaged in gametes made by an organism with a diploid number of 8 (2n=8)? a. 32 b. 16 c. 2 d. 4arrow_forward
- Why 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_forwardWhat is it called when chromosomes fail to separate properly during meiosis? A. Nondisjunction B. Karyotype C. Chromosomal separation failure D. Inappropriate separation E. Karyokinesisarrow_forwardHow many Barr bodies would you expect to see in a human cell containing the following chromosomes? a. XX b. XY c. XO d. XXY e. XXYY f. XXXY g. XYY h. XXX i. XXXXarrow_forward
- If a muscle cell in a frog has 28 chromosomes how many chromosomes will an unfertilized egg produced by this same frog have? Group of answer choices a. 7 b. 28 c. 35 d. 14 e. 56arrow_forwardHow many rounds of cell division are there in meiosis? Group of answer choices A. 1 B. 0 C. 2 D. 4arrow_forwardYou have a cell with 4 homologous pairs of chromosomes. Assuming no crossing over, how many combinations of chromosomes are possible in cells after meiosis is completed. Group of answer choices A. 4 B. 16 C. 32 D. 8arrow_forward
- A mature female tiger, with 38 diploid chromosomes in each somatic cell, produces haploid oocytes (egg cells) with how many chromosomes per cell? A. 18 autosomes, and 1 sex-determining chromosome (Y) B. 36 autosomes, and 2 sex-determining chromosomes (XX) C. 18 autosomes, and 1 sex-determining chromosome (X) D. 34 autosomes, and 2 sex-determining chromosomes (XY) E. 17 autosomes, and 1 sex-determining chromosome (X)arrow_forwardHumans have 46 chromosomes in each somatic cell. a. How many chromosomes does a child receive from its father?arrow_forwardHumans have 46 chromosomes in each somatic cell.a. How many chromosomes does a child receive fromits father?b. How many autosomes and how many sex chromosomes are present in each somatic cell?c. How many chromosomes are present in a humanovum?d. How many sex chromosomes are present in ahuman ovum?arrow_forward
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Mitochondrial mutations; Author: Useful Genetics;https://www.youtube.com/watch?v=GvgXe-3RJeU;License: CC-BY