1)What is the function of 16S rRNA in E.coli translation? a) initiates translati

Question

1)What is the function of 16S rRNA in E.coli translation?
a) initiates translation by binding to mRNA
b)catalyses peptide bond formation during elongation
c)structural components of ribosomes
d)all of the above

2)Which of the following best supports that the genetic code is triplet?
a)a deletion mutation can be suppressed by a second mutation caused by insertion
b)an insertion causes a framseshift mutation.
c) the deletion of three nucleotides in a row removes one amino acid without affecting the rest
d)it takes at least three nucleotides in a codon to account for 20 amino acids

3)The RNA molecule that functions as peptidyl transferease during translation is a type of
a)tRNA
b)mRNA
c)rRNA
d)sRNA
e)pRNA

4)What is the function of Shine-Dalgarno sequence?
a) A mRNA sequence including the start codon
b)A promoter sequence in E.coli
c)The binding site by 16S rRNA as part of the small ribosomal unit
d)also known as 5' CAP

Explanation / Answer

1) a 2) c 3) c 4) a

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