Which of the following causes mutations by creating thymine dimers?
A) nucleotide analogs
B) nitrous acid
C) ultraviolet light
D) benzopyrene
E) gamma rays
C
You might also like to view...
Typically, adhesins
A. are found on pili. B. help bacteria attach to host cells. C. are proteins. D. are found on host cells. E. are found on pili, help bacteria attach to host cells, AND are proteins.
The cytoskeleton
a. extends between the nucleus and the plasma membrane. b. is found within the nucleus. c. is associated with only certain cell structures. d. is found within organelles. e. is found in all animal cells but not in cells with cell walls.
In an mRNA molecule, each 3-base sequence is called a ____________ . Any one amino acid can be coded for by several of these 3-base sequences.
What will be an ideal response?
To treat a broken bone, physicians will
A) graft new bone to the region. B) exercise the area of the broken bone. C) prescribe bed rest and calcium supplements. D) reshape broken bone parts to their natural position.