The 5? UTR (untranslated region) of bacterial mRNA contains sequences essential for translation

The ribosome-binding site (including the Shine-Dalgarno sequence) is located within 10 bases of the AUG start codon. What is the role of the ribosome-binding site in translation?
What will be an ideal response?


Ans: Through complementary base pairing between the ribosome binding site and a sequence at the 3? end of the 16S small rRNA, the small ribosomal subunit (30S) assembles on the mRNA, positioning the P site over the first codon.

Biology & Microbiology

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The difference between gross primary productivity

and net primary productivity is the a. amount of sunlight reflected by plants. b. rate of photosynthesis of autotrophs. c. rate of energy utilization by autotrophs. d. rate of consumption of autotrophs by herbivores. e. net ecological productivity.

Biology & Microbiology

Which of the following statements concerning G protein is FALSE?

a. Its subunits can separate. b. One subunit is a GTPase. c. One subunit binds GTP. d. One subunit binds GDP. e. One subunit binds ATP.

Biology & Microbiology

The idea behind inclusive fitness is that alleles that cause socially helpful behaviors promote their own fitness by increasing the fitness of those with the same genes for helping behavior.

a. true b. false

Biology & Microbiology

In which organelle of the plant does photosynthesis takes place?

A. thylakoid membrane B. chloroplast C. grana D. mesophyll E. mitochondria

Biology & Microbiology