BIOLOGY
12th Edition
ISBN: 9781260169614
Author: Raven
Publisher: RENT MCG
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Textbook Question
Chapter 27.5, Problem 1LO
Describe the role of prokaryotes in biogeochemical cycling of elements.
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5. (15 points) An individual comes into your clinic with a phenotype that
resembles Down's syndrome. You perform CGH by labeling the patient's
hobe DNA red and her mother's DNA green. Plot the expected results of the
Red:Green ratio if:
A. The cause of the syndrome was an inversion on one chromosome 21 in the child
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21 p 12345678910 CEN q 123456789 10 11 12 13 14 15 16 17 18 19
B. The cause of the syndrome was a duplication of the material between 21q14 and
21q18 on one chromosome in the child
21 p 123456789 10 CEN q 12345678910 11 12 13 14 15 16 17 18 19
C. The mother carried a balanced translocation that segregated by adjacent
segregation in meiosis I and resulted in a duplication in the child of the material
distal to the translocation breakpoint at 21q14.
1.5
1.0
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21 p 12345678910 CEN q 123456789 10 11 12 13 14 15 16 17 18 19
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4.
You find that all four flower color genes map to the second
chromosome, and perform complementation tests with deletions for each
gene. You obtain the following results:
(mutant a = blue, mutant b = white, mutant c = pink, mutant d = red)
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Results of Complementation tests
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Mutant a
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Del (2.2 -2.6)
blue
white
pink
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Del (2.3-2.8)
blue
white
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red
Del (2.1 -2.5)
blue
purple
pink
purple
Del (2.4-2.7)
purple
white
pink
red
C
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Indicate where each gene maps:
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b
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1. Below is a pedigree of a rare trait that is associated with a variable number
repeat. PCR was performed on individuals using primers flanking the VNR,
and results are shown on the agarose gel below the pedigree.
I.1 1.2 II.1 II.2 II.3 II.4 II.5 II.6 11.7 III.1 III.2 III.3 III.4etum
A. (5 points) What is the mode of inheritance?
B. (10 points) Fill in the expected gel lanes for II.1, II.5, III.2, III.3 and III.4
C. (5 points) How might you explain the gel results for II.4?
Chapter 27 Solutions
BIOLOGY
Ch. 27.1 - Prob. 1LOCh. 27.1 - Prob. 2LOCh. 27.1 - Describe classification systems for prokaryotes.Ch. 27.2 - Prob. 1LOCh. 27.2 - Prob. 2LOCh. 27.2 - Prob. 3LOCh. 27.3 - Prob. 1LOCh. 27.3 - Prob. 2LOCh. 27.3 - Prob. 3LOCh. 27.4 - Describe the metabolic strategies employed by...
Ch. 27.4 - Compare and contrast the ways prokaryotes can...Ch. 27.5 - Describe the role of prokaryotes in biogeochemical...Ch. 27.5 - Prob. 2LOCh. 27.5 - Prob. 3LOCh. 27.6 - Prob. 1LOCh. 27.6 - Prob. 2LOCh. 27.6 - Prob. 3LOCh. 27 - Data analysis If the excision of an F plasmid Is...Ch. 27 - Prob. 1IQCh. 27 - Prob. 1UCh. 27 - A bacteria that obtains carbon from the atmosphere...Ch. 27 - Prob. 3UCh. 27 - Bacteria and archaebacteria may be distinguished...Ch. 27 - Prob. 5UCh. 27 - Prob. 6UCh. 27 - Prob. 7UCh. 27 - Prob. 1ACh. 27 - Prob. 2ACh. 27 - Prob. 3ACh. 27 - Prob. 4ACh. 27 - Prob. 5ACh. 27 - Some bacteria are capable of forming NH4+ from...Ch. 27 - Prob. 7ACh. 27 - Prob. 1SCh. 27 - Prob. 2SCh. 27 - Use of multiple antibiotics is not a bad idea if...Ch. 27 - Soil-based nitrogen-fixing bacteria appear to be...
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