Which one of the following remove nucleotides from the ends of DNA or RNA?

A. Endonuclease
B. Exonuclease
C. S 1 nuclease
D. Deoxyribonuclease

Submitted by: Urooj sabar

Exonucleases remove nucleotides from the terminal ends (either 5′ or 3′) of DNA of one strand of duplex. Endonucleases make cut at specific position within the DNA. DNA lagases are known as joining or sealing enzymes.

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A. Protein
B. Carbohydrate
C. Lipid
D. DNA
An enzyme which can convert single stranded RNA into double stranded viral DNA is called____________?
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B. RNAase
C. DNA polymerase
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The DNA fragments have sticky ends due to___________?
A. Endonuclease
B. Unpaired bases
C. Calcium ions
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Submitted by: Maria Aziz
Which of the following is an RNA virus:
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B. Herpes virus
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C. mitochondria
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Ribosomes + m-RNA?
A. Polysome
B. Phlosome
C. Polosome
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rRNA constitutes ____________% of the total cellular RNA?
A. 3-4 %
B. 10-20%
C. 80%
D. 90%
RNA interference helps in__________?
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B. Micropropagation
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Submitted by: Nayab Idrees