You Isolate a Purify a Bacteriophage That Can Replicate in E.coli.Through

question 82

Multiple Choice

You isolate a purify a bacteriophage that can replicate in E.coli.Through chemical analyses you determine that the only nucleic acid present is RNA.You isolate the RNA and put it in a test tube with all of the necessary proteins and RNAs for translation.The RNA is translated and new infectious virions are made.What does this tell you about the bacteriophage?

• A) The RNA genome is of the plus sense.
• B) The RNA genome is of the plus sense and RNA replicase is present in the viral capsid.
• C) The new bacteriophage is a retrovirus.
• D) RNA replicase is present in the viral capsid.

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Definitions:

Tumor Cell

A cell that has undergone mutation leading to uncontrolled growth, potentially forming a tumor.

Telomere

A region of repetitive nucleotide sequences at the end of a chromosome, protecting it from deterioration or fusion with neighboring chromosomes.

Noncoding DNA

Segments of DNA that do not code for proteins but have roles in regulating gene expression.