RNA MCQs : Here you will find MCQ Questions related to "RNA" in Biochemistry. These RNA MCQ Questions Will help you to improve your Biochemistry knowledge and will prepare you for various Examinations like Competitive Exams, Placements, Interviews and other Entrance Exmaniations.
RNA Stands for?
A. Robonuclear acid
B. Ribonuclear acid
C. Robonucleic acid
D. Ribonucleic acid
Explanation: RNA stands for Ribonucleic acid.
Synthesis of RNA is usually catalyzed by an enzyme—RNA polymerase—using DNA as a template, a process known as?
A. RNA interference
D. Primary transcript
Explanation: Synthesis of RNA is usually catalyzed by an enzyme—RNA polymerase—using DNA as a template, a process known as transcription.
Which of the following is not types of RNA?
Explanation: uRNA is not a type of RNA.
RNA is a single-stranded molecule.
C. Can be true or false
D. Can not say
Explanation: Unlike double-stranded DNA, RNA is a single-stranded molecule
Which of the following is not involved in the post transcriptional processing of t-RNA?
A. Base modulation
B. Attachment of CCA arm
C. Attachment of poly-A tail
Explanation: Base modulation, attachment of CCA arm and splicing are involved in the post transcriptional processing of t-RNA.
The earliest known regulators of gene expression were proteins known as?
C. chromosome inactivation
D. Both A and B
Explanation: Regulatory RNA : The earliest known regulators of gene expression were proteins known as repressors and activators – regulators with specific short binding sites within enhancer regions near the genes to be regulated.
70S prokaryotic ribosome is the complex of ____________
A. 30S + 50S
B. 30S + 40S
C. 20S + 60S
D. 20S + 30S
Explanation: 70S prokaryotic ribosome is the complex of 30S and 50S subunits
Reverse transcriptase does not catalyze ____________
A. RNA-dependent DNA synthesis
B. RNA degradation
C. DNA-dependent RNA synthesis
D. DNA-dependent DNA synthesis
Explanation: Reverse transcriptase catalyzes three different reactions: RNA-dependent DNA synthesis, RNA degradation and DNA-dependent DNA synthesis.
In RNA, complementary base to adenine in RNA is thymine?
C. Can be yes or no
D. Can not say
Explanation: The complementary base to adenine in DNA is thymine, whereas in RNA, it is uracil, which is an unmethylated form of thymine
Which of the following are RNA viruses?
A. Hepatitis B virus
B. CMV virus
D. Influenza A virus
Explanation: Influenza A virus is RNA virus.