What is the advantage of freezing meals? A. They retain fewer nutrients.

B. Food that has expired can be preserved.

C. They can be kept in the freezer for years.

D. They are ready to go when you need them.

Which of the following processes within viral replication is the greatest source of genetic variation in rna virus populations? a) high mutation rate due to lack of proofreading of rna genome replication errors. b) transcription from the host cell rna polymerase introduces numerous mutations. c) capsid proteins from the host cell can replace the viral capsid. d) viral rna is translated by host cell ribosomes.