Given the DNA sequence 5?-TAC AAA ATA CAG CGG-3?, which of these sequences represents a nonsense mutation?
A) 5?-TAG AAA ATA CAG CGG-3?
B) 5?-TAC AAA TAC AGC GGG-3?
C) 5?-TAC AAG ATA CAG CGG-3?
D) 5?-TAC AAA ATA CAC CGG-3?
E) 5?-TAC AAA ATA CAG AGG-3?
A
You might also like to view...
Some cyanobacteria are not blue-green, rather they are red or brown; this is due to the presence of the photosynthetic pigment ________.
Fill in the blank(s) with the appropriate word(s).
Axillary buds
A. add length to a plant. B. develop into roots when water is scarce. C. form flowers or branches. D. increase the diameter of a stem. E. form lateral meristems.
For which of the following is the first amino acid in proteins formylmethionine?
a. Archaea only b. Bacteria only c. both Archaea and Bacteria d. neither Archaea nor Bacteria e. Archaea, Bacteria and Eukarya
Psilotum lacks
a. roots. b. a mechanism to take up water and minerals. c. vascular tissue. d. alternation of generations.