The intermediates A, B, C, D, E, and F all occur inthe same biochemical pathway. G is the product of thepathway, and mutants 1 through 7 are all G−, meaningthat they cannot produce substance G. The followingtable shows which intermediates will promote growthin each of the mutants. Arrange the intermediates inorder of their occurrence in the pathway, and indicatethe step in the pathway at which each mutant strain isblocked. A + in the table indicates that the strain willgrow if given that substance, an O means lack of growth.SupplementsMutant A B C D E F G1 + + + + + O +2 O O O O O O +3 O + + O + O +4 O + O O + O +5 + + + O + O +6 + + + + + + +7 O O O O + O +
The intermediates A, B, C, D, E, and F all occur inthe same biochemical pathway. G is the product of thepathway, and mutants 1 through 7 are all G−, meaningthat they cannot produce substance G. The followingtable shows which intermediates will promote growthin each of the mutants. Arrange the intermediates inorder of their occurrence in the pathway, and indicatethe step in the pathway at which each mutant strain isblocked. A + in the table indicates that the strain willgrow if given that substance, an O means lack of growth.SupplementsMutant A B C D E F G1 + + + + + O +2 O O O O O O +3 O + + O + O +4 O + O O + O +5 + + + O + O +6 + + + + + + +7 O O O O + O +
Human Heredity: Principles and Issues (MindTap Course List)
11th Edition
ISBN:9781305251052
Author:Michael Cummings
Publisher:Michael Cummings
Chapter10: From Proteins To Phenotypes
Section: Chapter Questions
Problem 9QP: a. Compounds A, B, C, and D are known to be intermediates in the pathway for production of protein...
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Question
The intermediates A, B, C, D, E, and F all occur in
the same biochemical pathway. G is the product of the
pathway, and mutants 1 through 7 are all G−, meaning
that they cannot produce substance G. The following
table shows which intermediates will promote growth
in each of the mutants. Arrange the intermediates in
order of their occurrence in the pathway, and indicate
the step in the pathway at which each mutant strain is
blocked. A + in the table indicates that the strain will
grow if given that substance, an O means lack of growth.
Supplements
Mutant A B C D E F G
1 + + + + + O +
2 O O O O O O +
3 O + + O + O +
4 O + O O + O +
5 + + + O + O +
6 + + + + + + +
7 O O O O + O +
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