genetics exam 4

In E.coli, which terms accurately reflect the nature of replication of the chromosome?

A. bidirectional and fixed point of initiation
B. unidirectional and fixed point of initiation
C. unidirectional and reciprocal
D. biodirectional and multiple points of initiation

A single gene may produce two or more different RNAs by the process of

A. alternative splicing
B. histone acetylation
C. RNA interference
D. DNA methylation

DNA polymerase II adds nucleotides

A. to the 5' end of the RNA primer
B. to the 3' end of the RNA primer
C. to both ends of the RNA primer
D to internal sites in the DNA template

DNA polymerase I is thought to add nucleotides

A. in the place of the primer RNA after it is removed
B. to synthesize primer
C. to the 5' end of the primer
D. on single-stranded templates without need for an RNA primer

Structures located at the ends of eukaryotic chromosomes are called

A. centromeres
B telomerase
C. recessive mutations
D. telomeres