Essentials of Genetics Plus Mastering Genetics with eText -- Access Card Package (9th Edition) (Klug et al. Genetics Series)
9th Edition
ISBN: 9780134047201
Author: William S. Klug, Michael R. Cummings, Charlotte A. Spencer, Michael A. Palladino
Publisher: PEARSON
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Chapter 13, Problem 20PDQ
How would the results in cross (a) of Problem 19 vary if genes A and B were linked with no crossing over between them? How would the results of cross (a) vary if genes A and B were linked and 20 map units apart?
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If the map distance between genes A and B is 10 map units and the map distance between genes B and C is 25 map units,
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Explain why this is true.
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Chapter 13 Solutions
Essentials of Genetics Plus Mastering Genetics with eText -- Access Card Package (9th Edition) (Klug et al. Genetics Series)
Ch. 13 - CASE STUDY | Crippled ribosomes Diamond Blackfan...Ch. 13 - CASE STUDY | Crippled ribosomes Diamond Blackfan...Ch. 13 - Prob. 3CSCh. 13 -
HOW DO WE KNOW?
1. In this chapter, we focused on...Ch. 13 - Review the Chapter Concepts list on p. 238. These...Ch. 13 - List and describe the role of all molecular...Ch. 13 - Contrast the roles of tRNA and mRNA during...Ch. 13 - Francis Crick proposed the adaptor hypothesis for...Ch. 13 -
6. During translation, what molecule bears the...Ch. 13 - Summarize the steps involved in charging tRNAs...
Ch. 13 - Each transfer RNA requires at least four specific...Ch. 13 -
9. Explain why the one-gene:one-enzyme hypothesis...Ch. 13 - Prob. 10PDQCh. 13 - Prob. 11PDQCh. 13 - Prob. 12PDQCh. 13 - Assuming that each nucleotide is 0.34 nm long in...Ch. 13 - Review the concept of colinearity in Section 12.5...Ch. 13 -
15. In your opinion, which of the four levels of...Ch. 13 -
16. List and describe the function of as many...Ch. 13 - How does an enzyme function? Why are enzymes...Ch. 13 -
18. Shown in the following table are several...Ch. 13 -
19. Three independently assorting genes are known...Ch. 13 -
20. How would the results in cross (a) of Problem...Ch. 13 - A series of mutations in the bacterium Salmonella...Ch. 13 -
22. The emergence of antibiotic-resistant strains...
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- A geneticist examines an ear of corn in which most kernels are yellow, but he finds a few kernels with purple spots, as shown here. Give a possible explanation for the appearance of the purple spots in these otherwise yellow kernels, accounting for the different sizes of the spots.arrow_forwardIn Figure 17-28, what would be the consequence of acrossover between the centromere and locus A?arrow_forwardConsidering Figure 2-13, if you had a homozygous double mutant m3/m3 m5/m5, would you expect it to be mutant in phenotype? (Note: This line would have two mutant sites in the same coding sequence.)arrow_forward
- Females of wild-type Strain A and males of mutant Strain B, as well as females of mutant Strain B and males of wild-type Strain A, make reciprocal crosses. Explain why reciprocal crosses are needed in genetics experiments involving Drosophila fruit flies.arrow_forwardIn Figure 4-9, why is only locus A shown in a constantposition?arrow_forwardIf d and f = 2%, what is the correct arrangement of the genes d,e,f?arrow_forward
- Consider two maize plants:a. Genotype C/c m ; Ac/Ac+, where cm is an unstable allele caused by a Ds insertionb. Genotype C/c m, where cm is an unstable allele caused by Ac insertionWhat phenotypes would be produced and in what proportions when (1) each plant is crossed with a basepair-substitution mutant c/c and (2) the plant in part a is crossed with the plant in part b? Assume that Ac and c are unlinked, that the chromosome-breakage frequency is negligible, and that mutant c /C is Ac+.arrow_forwardIn a diploid organism of 2n=10, assume that you can label all the centromeres derived from its female parent and all the centromeres derived from its male parent. When this organism produces gamestes, how many male and female-labeled centromere combinations are possible in the gametes?arrow_forwardWhat are the correct base pairs for the question shown?arrow_forward
- What is the most likely order of the linked genes R, S, and T if the distance between R and S is 22 cM, the distance between S and T is 8cM, and the distance between R and T is 14 cM? A. R S T B. T R S C. Cannot be determined D. S T Rarrow_forwardConsider a maize plant: Genotype C/cm ; Ac/Ac+ where cm is an unstable colorless allele caused by Ds insertion. What phenotypic ratios would be produced and in what proportions when this plant is crossed with a mutant c/c Ac+/Ac+? Assume that the Ac and c loci are unlinked, that the chromosome-breakage frequency is negligible, and the C allele encodes pigment production.arrow_forward. In a diploid organism of 2n = 10, assume that you canlabel all the centromeres derived from its female parentand all the centromeres derived from its male parent.When this organism produces gametes, how many maleand female-labeled centromere combinations are possible in the gametes?arrow_forward
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