Which of the following is nottrue of the first step of translational elongation in bacteria?
A. GTP-bound EF-Tu interacts with the tRNA acylated with the next amino acid to be added.
B. The function of EF-Ts is to exchange the GDP bound by EF-Tu with GTP.
C. EF-Tu hydrolyzes GTP after dissociation from the aminoacyl-tRNA bound in the A site.
D. Correct codon-anticodon interactions are proofread when the EF-Tu dissociates through a process called accommodation.
C
You might also like to view...
Imagine that several thousand years ago, a group of bats and a group of frogs colonized an island at the same time. What can you expect of their current descendants?
A. There will be more frog species compared to bat species. B. There will be more bat species compared to frog species. C. The number of bat and frog species will be equal. D. All frog species will have become extinct on the island. E. All bat species will have become extinct on the island.
There are different versions of the gene that codes for fur thickness, one of which codes for
thicker fur and another that codes for thinner fur. In 1995, about 50 percent of the animals had thicker fur, and the other 50 percent had thinner fur. In the spring of 2012, after several years of low snow cover, 70 percent of the population had thicker fur, while only 30 percent had thinner fur. This change in the population is an example of
a. an adaptation. b. evolution. c. natural selection. d. homology.
If motility is considered a characteristic of animals, then why are stationary creatures such as sponges still considered to be animals?
What will be an ideal response?
When NADP+ _____ electrons and hydrogen ions in the light reactions, NADPH is formed through _____.
A. donates, oxidation B. accepts, oxidation C. donates, reduction D. accepts, reduction E. None of the above