Ascospores from a Cross Leu-2 * Ad-7 Met-3 (All Auxotrophic

question 58

Multiple Choice

Ascospores from a cross leu-2 * ad-7 met-3 (all auxotrophic markers) are plated on minimal medium (no adenine,leucine,or methionine) .If the three genes are unlinked,what proportion of ascospores is expected to grow into a colony on this medium?

• A)0.005
• B)0.045
• C)0.125
• D)0.250
• E)0.500

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