In the sequence of events during translation, what is the next step after an mRNA binds to the ribosome's small subunit?

A) An amino acid from a tRNA in the P site attaches to an amino acid on the tRNA in the A site.
B) A tRNA binds to the start codon, and the large ribosomal subunit joins the ribosome.
C) A tRNA is released from the E site.
D) A tRNA enters the A site of the ribosome.
E) The ribosome shifts down the mRNA by one codon.


Answer: B

Biology & Microbiology

You might also like to view...

Medically important bacteria are often

A. grown on agar containing blood. B. grown at 37?C. C. grown on agar containing chocolate. D. grown at a pH of 5. E. grown on agar containing blood AND grown at 37?C.

Biology & Microbiology

Stacy is studying the structure of plant cell walls. Thus, she is studying __________

a. a carbohydrate b. a protein c. glucose molecules d. both a carbohydrate and glucose molecules

Biology & Microbiology

Contact inhibition is an important mechanism for maintaining cell growth in developed organs and tissues. As long as

the cells maintain contact with each other, they remain in ____ and are prevented from dividing.

a. prophase b. G1

c. G2 d. G0 e. S

Biology & Microbiology

Answer the following questions true (T) or false (F)

1. In chemiosmosis, protons funnel through ATP synthase from an area where they are more concentrated to an area where they are less concentrated. 2. The Entner-Doudoroff pathway is a less efficient alternative to glycolysis which likely evolved early in the history of life to catabolize glucose. 3. A bacterial culture which is growing under conditions that only allow for fermentation will grow at the same rate as a culture of the same species growing under conditions which allow for aerobic cellular respiration, all other conditions being identical.

Biology & Microbiology