How Many Recombinant Clones Must Be Present in a CDNA

question 39

Multiple Choice

How many recombinant clones must be present in a cDNA library to be 95% certain that the library contains one clone of a particular mRNA molecule representing 0.005% of the total mRNA?

• A) 5.9 × 10³
• B) 6 × 10⁴
• C) 6 × 10⁶
• D) 5 × 10⁵

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