In an Imagined Transduction Experiment with Alleles A⁺,b⁺,and C⁺,a⁺ Alone

question 11

Multiple Choice

In an imagined transduction experiment with alleles a⁺,b⁺,and c⁺,a⁺ alone was transduced into an auxotroph 1400 times,b⁺ alone 1200 times,and c⁺ alone 970 times.Genes a⁺ and b⁺ were both found 10 times,b⁺ and c⁺ 2 times,and a⁺ and c⁺ one time.What can you conclude?

• A)Cotransduction is too infrequent to be used to map genes.
• B)Genes a and c cotransduce only accidentally.
• C)Genes a and b are more closely linked than a and c or b and c.
• D)Genes a and c are found together only if double crossovers have occurred.
• E)Transduction of gene c is very rare.

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