Transfer RNA (tRNA)

Question 1

Where and by what enzyme is tRNA synthesised by?

Answer 1

RNA Polymerase III synthesizes pre-tRNA in the nucleus that undergoes processing and is exported to the cytoplasm.

Question 2

True of False. easy tRNA molecule produced is the same.

Answer 2

False. Each anti codon on the tRNA is complementary to a different codon on the mRNA.

Question 3

What is a tRNA called that is carrying a specific amino acid?

Answer 3

A charged tRNA.

Question 4

True or false. The tRNA structure takes on a global organisation that is highly conserved across each molecule.

Answer 4

True

Question 5

What is the structure of tRNA?

Answer 5

It is a 75 nucleotide long molecule that undergoes folding and base-pairing to form a clover leaf structure that contains: an anticodon arm, an acceptor arm, a D arm and a T⍦C arm.

Question 6

What is the distinguishing feature of each arm?

Answer 6

The anti codon arm binds the codon on the maRNA.

The acceptor arm binds the amino acid.

The D arm a base dihydrouridine modification

The T⍦C arm contains T, pseudouridine and C