Chapter
1. 6.5 Screening and Selecting for Mutations
Animated Art
6.5 Screening and Selecting for Mutations
1.1
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Question 1 of 5
Questions
Question
1.1
How can ade2 and ade7 mutants be distinguished from one another?
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Question
1.2
A red colony is recovered on a plate that lacks adenine. This mutant is complemented with ade2+, but it turns out that it was not an ade2 mutant. What result was observed that supported this conclusion?
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Question
1.3
Many cells are treated with a mutagen, and just a small number of white colonies are observed on a medium lacking adenine. What is the genotype of the cells treated with a mutagen and what type of cells are growing?
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Question
1.4
If an unlinked ade2 suppressor is crossed to WT, what will be the expected progeny ratio?
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Question
1.5
A mutation in a gene that encodes an enzyme operating upstream of ade2 in the adenine biosynthetic pathway will have which phenotype when it is a double mutant with ade2?