Which statement is true?
there are a number of chromosomes on a given gene; all of these actively code for proteins.
chromosomes contain many genes; not all genes are actively coding.
dna contains a number of segments that code for specific proteins; these segments are proteins.
the segments of genes found on chromosomes are made of rna, which codes for protein synthesis

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.