homework 2 c

During eukaryotic translation initiation, what specific sequence around the start codon (AUG) helps the ribosome recognize it?

Question 1

Kozak sequence

Small nuclear RNAs (snRNAs) are critical components of what complex responsible for removing introns from pre-mRNA?

Spliceosome

What is a primary function of the 5' cap added to eukaryotic mRNA?

To give mRNA stability and aid in translation efficiency.

Component of ribosomes

rRNA

Contains codons

mRNA

Processing of mRNA (splicing)

snENA

Used in degrading mRNA

siRNA

Brings amino acid to ribosome

tRNA

Which class of RNA is most abundant in cells?

Question 5

rRNA

Which of the following elements would not typically be found in an mRNA molecule

Promoter

Which part of the tRNA does the amino acid bind to

3’ end

During translation, the peptide bond formation is catalyzed by

rRNA

What enzyme is responsible for joining the tRNA molecule with its amino acid

aminoacyl synthetase

Which type of RNA in eukaryotes undergoes significant processing steps involving the addition of a 5' cap and a 3' poly(A) tail?

Question 1

mRNA

Serine is coded by UCC, UCU, UCA, and UCG. This redundancy in codons for a single amino acid is an example of what general feature of the genetic code?

Degeneracy

What event signals the termination of translation, leading to the release of the newly synthesized polypeptide chain?

A stop codon arriving at the A site of the ribosome.

The spliceosome is a large, ribonucleoprotein complex located in the

Question 5

Nucleus

The 5′ cap on an mRNA is important for which of the processes listed below?

Ribosomal interaction, stability of mRNA molecule, initiation of translation, intron splicing efficiency

On which molecule is the Shine-Dalgarno sequence found?

Question 7

mRNA

What enzyme is responsible for joining the tRNA molecule with its amino acid?

Question 8

Aminoacyl synthetase

For a sequence of mRNA, how many reading frames are possible?

3