The Way That Genetic Material of a Bacteriophage Enters a Bacterium

question 30

Multiple Choice

The way that genetic material of a bacteriophage enters a bacterium is most like the way that

• A)a drug is injected with a hypodermic needle.
• B)skin lotion is rubbed onto the hands.
• C)water soaks into a sponge.
• D)a person swallows a pill.

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Definitions:

Nonsense Mutation

A base-pair substitution mutation that results in an amino acid–specifying codon being changed to a termination (stop) codon; when the abnormal mRNA is translated, the resulting protein is usually shortened and nonfunctional. Compare with missense mutation.

Codon

A sequence of three nucleotides that together form a unit of genetic code in a DNA or RNA molecule, representing a specific amino acid.

Termination Codon

A nucleotide triplet within messenger RNA that signals the end of translation, resulting in the release of the newly synthesized protein.

Anticodon

Three nucleotides in a row create a genetic code unit within a transfer RNA molecule, matching a corresponding codon in messenger RNA.