Which of the following is a form of direct DNA repair?

Bacterial insertion sequences encode which of the following gene products?

_____ mutations produce new activities and are usually dominant.

When siRNAs are present, the rate of mRNA degradation _____ and the rate of protein production _____.

Given the following figure, what would be the effect of a mutation that occurred in the insulator that prevented the binding of the insulator-binding protein?

Suppose a scientist discovered a mutant strain of C. elegans worms that had lost the ability to regulate gene expression via RNA interference mechanisms. Which of the following might she predict is a possible source of this defect?

If the bottom strand of the DNA is the template, the tRNA anticodon sequence for the first RNA codon, left to right or 5 to 3, is:

Which of the following statements about regulation of gene expression is CORRECT?

Translation in prokaryotes and eukaryotes has some similarities but differs in important ways. Which of the following statements about similarities and differences in prokaryotic and eukaryotic translation are TRUE? (Select all that apply.)

An insertion of two nucleotides in the protein coding region of  a gene will cause a frameshift.