Explore topic-wise MCQs in Molecular Biology.

This section includes 7 Mcqs, each offering curated multiple-choice questions to sharpen your Molecular Biology knowledge and support exam preparation. Choose a topic below to get started.

1.

Which element of the ribosome plays a key role in mRNA translation?

A. rRNA of the large subunit
B. Proteins of the large subunit
C. rRNA of the small subunit
D. Proteins of the small subunit
Answer» D. Proteins of the small subunit
2.

With respect to the composition of the ribosome which of the following is correct?

A. Ribosome is composed of 60S and 30S subunit
B. Eukaryotic ribosome small subunit contains only one 16S rRNA
C. 60S subunit consists of 5S rRNA and 23S rRNA
D. 60S and 40S makes up the 80S ribosome
Answer» E.
3.

Which one of the following is known as the Kozak sequence?

A. 5 ..CNNAUCG ..3
B. 5 ..GNNAUGG ..3
C. 5 ..TNNAUGG ..3
D. 5 ..GNNAUGC ..3
Answer» C. 5 ..TNNAUGG ..3
4.

Eukaryotic mRNA is read in the 3 to 5 direction.

A. True
B. False
Answer» C.
5.

Eukaryotic mRNAs recruit ribosomes using the Shine Dalgarno sequence.

A. True
B. False
Answer» C.
6.

Which part of the ribosome identifies the Shine Dalgarno sequence?

A. Protein
B. 16S rRNA
C. 23S rRNA
D. 5S rRNA
Answer» C. 23S rRNA
7.

What was the name of the ribosome binding site?

A. ORF
B. RBS
C. A site
D. Shine Dalgarno sequence
Answer» D. Shine Dalgarno sequence