Genetic Analysis: An Integrated Approach (2nd Edition)
2nd Edition
ISBN: 9780321948908
Author: Mark F. Sanders, John L. Bowman
Publisher: PEARSON
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Chapter 5, Problem 9P
Genes A, B, C, D, and E are linked on a chromosomeand occur in the order given. The test cross
a. If
b. Previous genetic linkage crosses have determined that recombination frequencies for these genes are
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You breed two monster parents (green, hairless) GGhh and ggHH (white, hairy) to produce F1 offspring (green, hairy). Genes G and H are on the same chromosome.
a. What are the dominant phenotypes?
b. What are ALL of the potential gamete genotypes that could be created by an F1? Clearly indicate the recombinant genotypes.
c. Explain how recombinants are created.
d. What are the potential offspring genotypes from the cross of a F1 monster with a homozygous recessive monster.
e. From this test cross you get 152 green, hairless; 23 green, hairy; 148 white, hairy, and 27 white, hairless. Calculate the chi squared to test the independent assortment hypothesis and determine if these genes assort independently.
Fruit flies can have straight wings (S) or curly wings (s), and they can have be female XX or male XY.
(A) For a standard monohybrid cross (Ss ´ Ss), what proportion of the offspring will have the genotype ss? (Express the proportion as a simple fraction)
(B) For the following cross (SsXX ´ SsXY), what proportion of the offspring will have the genotype Ss? (Express the proportion as a simple fraction)
(C) What proportion will have the genotype XX? (Express the proportion as a simple fraction)
(D) What proportion will have the genotype SsXX? (Express the proportion as a simple fraction)SHOW YOUR WORK
CC DD and cc dd individuals were crossed to eachother, and the F1 generation was backcrossed to thecc dd parent. 997 Cc Dd, 999 cc dd, 1 Cc dd, and 3 ccDd offspring resulted.a. How far apart are the c and d loci?b. What progeny and in what frequencies would youexpect to result from testcrossing the F1 generationfrom a CC dd × cc DD cross to cc dd?c. In a typical meiosis, how many crossovers occurbetween genes C and D?d. Assume that the C and D loci are on the samechromosome, but the offspring from the testcrossdescribed in part (b) were 498 Cc Dd, 502 cc dd,504 Cc dd, and 496 cc Dd. How would your answer to part (c) change?
Chapter 5 Solutions
Genetic Analysis: An Integrated Approach (2nd Edition)
Ch. 5 - For parts a, b, and c, draw a diagram illustrating...Ch. 5 - 5.2 In a diploid species of plant, the genes for...Ch. 5 - A pure-breeding tall plant producing oval fruit as...Ch. 5 - 5.4 Genes E and H are syntenic in an experimental...Ch. 5 - In tomato plants, purple leaf color is controlled...Ch. 5 - 5.6 In Drosophila, the map positions of genes are...Ch. 5 - 5.7 Genes A, B, and C are linked on a chromosome...Ch. 5 - Gene G recombines with gene T at a frequency of...Ch. 5 - Genes A, B, C, D, and E are linked on a...Ch. 5 - Syntenic genes can assort independently. Explain...
Ch. 5 - The recombination frequency between linked genes...Ch. 5 - On the DrosophilaX chromosome, the dominant allele...Ch. 5 - Researchers cross a corn plant that is pure -...Ch. 5 - 5.14 syndrome is an autosomal disorder affecting...Ch. 5 - 5.15 Three dominant traits of corn seedlings,...Ch. 5 - 5.16 In a diploid plant species, an with the...Ch. 5 - Prob. 17PCh. 5 - The Rh blood group in humans is determined by a...Ch. 5 - 5.19 Genetic linkage mapping for a large number of...Ch. 5 - 20. Neurospora with the genotype form tetrads in...Ch. 5 -
Gene and gene are genetically linked. Answer...Ch. 5 -
T. H. Morgan’s data on eye color and wing form,...Ch. 5 - Prob. 23PCh. 5 -
The boss in your laboratory has just heard of a...Ch. 5 - In rabbits, chocolate-colored fur (w+) is dominant...Ch. 5 - Prob. 26PCh. 5 - 5.27 In tomatoes, the allele for tall plant height...Ch. 5 - 5.28 Neurofibromatosis is an autosomal dominant...Ch. 5 - A 2006 genetic study of a large American family...Ch. 5 - 5.30 A experiment examining potential genetic...Ch. 5 - 31. As part of their analysis of intragenic...Ch. 5 - In experiments published in 1918 that sought to...
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