1. When mRNAa are being translated simultaneously by multiple ribisomes, the structure is known as a(n)__....

1. When mRNAa are being translated simultaneously by multiple ribisomes, the structure is known as a(n)__.

a- operon

b - polytene

c- polycistron

d- polyribosome

e- copolymer

2. which of the following is not involved in the initiation of translation in bacteria?

a- mRNA

b- tRNA carrying N-formylmethionine that will occupy the P site

c- GTP and initiation factors

d- small and large ribosomal subunits

e- tRNA carrying the next amino acid that will occupy the A site

3- what type of proteins recognize and bind to eukaryotic upstream regulatory promoter consequences sequences

a- sigma subunits

b- RNA polymerase III

C- All of these proteins can bond to the regulatory promotor sequences

d- Rut proteins

e- transcriptional proteins

Solutions

Expert Solution

Question 1 -

Answer - The option (d) is correct. Polyribosome .

Explanation - the mRNA molecules translated simultaneously by many ribosomes, so resulting structure is polyribosome.

Question 2 -

Answer - The option (E) is correct. tRNA carrying next amino acids that will occupy the A Site .

Explanation - because this is use in elongation step of translation.

Question 3 - The option (b) is correct.

RNA polymerase

gladiator answered 1 year ago

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