Question

A mutation that changes the codon UAU to the codon UAC in a mammalian cell line is called:

A.

Synonymous mutation

B.

Missense mutation

C.

Frameshift mutation

D.

Antisense mutation

E.

Nonsense mutation

In nucleotide-excision repair, which proteins form a multienzyme complex that recognizes bulky DNA adducts by detecting distortions in the double helix?

	A.	AP endonuclease and DNA glycosylase
	B.	UvrA and uvrB
	C.	DNA helicase and uvrC
	D.	DNA ligase and DNA polymerase
	E.	DNA helicase and uvrA