After you've completed the tutorial, click the button below to answer questions about what you've learned.
Animation Assessment
30
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After you've completed the tutorial, click the button below to answer questions about what you've learned.
Animation Assessment
Question 1 of 4
Questions
Question
1.1
Pink mutant A is crossed to pink mutant B and the progeny are pink. Pink mutant A is then crossed to pink mutant C and the progeny are red. Which mutants arise from different alleles of the same gene?
A.
B.
C.
D.
E.
Correct.
Incorrect.
2
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Question
1.2
The A and the B gene both contribute to pigment production in a plant with dark purple petals; aa mutants are uniformly light purple while bb mutants have patches of purple. If the A and B genes work together to perform an essential cellular function, what progeny ratios will result when AaBb is self-fertilized?
A.
B.
C.
D.
E.
Correct.
Incorrect.
2
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Question
1.3
Genes A and B encode transcription factors that together activate high expression of gene C, an essential gene. High gene C expression results in rapid growth while reduced gene C expression results in slow growth. If AaBb is self-fertilized, what will be the ratio of fast : slow growers in the progeny?
A.
B.
C.
D.
E.
Correct.
Incorrect.
2
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Question
1.4
In maize, genes D and E encode transcription factors that together activate high expression of gene G. A DdEe genotype is self-fertilized and 1/16 of the kernels are small and wrinkled. Which gene products are needed for G gene expression to be above a threshold for normal kernel development?