Genetic Analysis: An Integrated Approach (3rd Edition)
3rd Edition
ISBN: 9780134605173
Author: Mark F. Sanders, John L. Bowman
Publisher: PEARSON
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Chapter 10, Problem 14P
Dr. Ara B. Dopsis has an idea he thinks will be a boon to agriculture. He wants to create the “pomato,” a hybrid between a tomato (Lycopersiconesculentum) that has
How many chromosomes will the hybrid have before chromosome doubling?
Will this hybrid be infertile?
How many chromosomes will the polyploid have after chromosome doubling?
Can Dr.Dopsis be sure the polyploid will have the characteristics he wants? Why or why not?
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For a haploid fungus, the starting point in the biosynthesis of the amino acid
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environment. The arginine biosynthetic pathway is:
Enzyme A
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Enzyme Ç
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It is know that genes encoding enzymes A and C are on two different
chromosomes.
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A mutant strain of genotype a (lacking only enzyme A) is crossed to a mutant strain
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O 100%
50%
0%
25%
You cross two yeast strains one is an ade auxotroph the other is a pro auxotroph and allow
the diploid to sporulate. When you score each spore in the ascus you find the following
proportions: 518 PD, 8 NPD, and 225 T.
a.) What are the genotypes of each spore in all three types of the tetrads.
b) Are these genes linked why or why not?
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be?
d.) What is the formula to determine the most accurate distance between these genes? If
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Imagine that you have done a cross between two strains of yeast, one of which has the genotype A B C and the other a b c, where the letters refer to three closely linked genes in the order
given. You examine many tetrads resulting from this cross, and the two tetrads below are found that have atypical scoring patterns.
In tetrad I, the spores are A B C, ABC, a B c, and a b c.
In tetrad II, the spores are A B C, A b c, a b C, and a b c.
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O neither tetrads I and II
O tetrad II
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O both tetrads I and II
Chapter 10 Solutions
Genetic Analysis: An Integrated Approach (3rd Edition)
Ch. 10 - 10.1 Give descriptions for the following...Ch. 10 - 10.2 The human genome contains contains base...Ch. 10 - In eukaryotic DNA, Where are you most likely to...Ch. 10 - 10.4 Describe the importance of light and dark G...Ch. 10 - Human late prophase karyotypes have about 2000...Ch. 10 - Prob. 6PCh. 10 - From the following list, identify the types...Ch. 10 - 10.8 If the haploid number for a plant species is...Ch. 10 - Mating between a male donkey (2n=64) and a female...Ch. 10 - A researcher interested in studying a human gene...
Ch. 10 - 10.11 In what way does position effect variegation...Ch. 10 - 10.12 A pair of homologous chromosomes in...Ch. 10 - 10.13 An animal heterozygous for a reciprocal...Ch. 10 - Dr. Ara B. Dopsis has an idea he thinks will be a...Ch. 10 - A normal chromosome and its homolog carrying a...Ch. 10 - The accompanying chromosome diagram represents a...Ch. 10 - 10.17 Histone protein isolated from pea plants...Ch. 10 - 10.18 A survey of organisms living deep in the...Ch. 10 - In humans that XX/XO mosaics, the phenotype is...Ch. 10 - 10.20 A plant breeder would like to develop the...Ch. 10 - In Drosophilia, seven partial deletion (1to7)...Ch. 10 - Two experimental varieties of strawberry are...Ch. 10 - 10.23 In the tomato, Solanum esculentum, tall ()...Ch. 10 - A boy with Down syndrome (trisomy 21) has 46...Ch. 10 - Experimental evidence demonstrates that the...Ch. 10 - Prob. 26PCh. 10 - Genomic DNA from the nematode worm...Ch. 10 - 10.28 A small population of deer living on an...Ch. 10 - A eukaryote with a diploid number of 2n=6 carries...Ch. 10 - Prob. 30PCh. 10 - For the following crosses, determine as accurately...Ch. 10 - A healthy couple with a history of three previous...
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