VNTR are useful in DNA profiling because they:

I. Are hypervariable

II. Are inherited

III. Synthesize constitutive enzymes

(1) I, II, III are correct

(2) I and II are correct

(3) I and III are correct

(4) II and III are correct   

Subtopic:  DNA Fingerprinting |
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Which enzyme polymerizes RNA with defined sequences in a template independent manner?

(1) Peptidyl transferase

(2) RNA polymerase

(3) Reverse transcriptase

(4) Polynucleotide phosphorylase

Subtopic:  Genetic Code: I | Genetic Code |
From NCERT
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The process of RNA splicing shows the dominance of :

(1) DNA world

(2) RNA world

(3) Protein world

(4) Microbial world

Subtopic:  Transcription: IV | Transcription |
 92%
From NCERT
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In RNA splicing :

(1) Exons are removed and introns are joined together

(2) Introns are removed and exons are joined together

(3) Cistrons are removed and introns are joined together

(4) Introns are removed and Cistrons are joined together

Subtopic:  Transcription: IV | Transcription |
 89%
From NCERT
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The core RNA polymerase is capable of catalyzing which steps of transcription ?

(1) Initiation only

(2) Elongation only

(3) Termination only

(4) All of these

Subtopic:  Transcription: III | Transcription |
 52%
From NCERT
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In most prokaryotes the transcription unit is :

(1) Mono-cistronic

(2) Poly-cistronic

(3) Multi-cistronic

(4) Uni-cistronic

Subtopic:  Transcription:II | Transcription |
 81%
From NCERT
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The DNA dependent DNA polymerases catalyze:

1. Only in 3'-5' direction

2. Only in 5'-3' direction

3. In both directions

4. In neither directions

Subtopic:  DNA Replication:III | DNA Replication |
 77%
From NCERT
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Reverse transcriptase is a:

(1) DNA dependent RNA polymerase

(2) RNA dependent DNA polymerase

(3) RNA dependent RNA polymerase

(4) DNA dependent DNA polymerase

Subtopic:  Transcription: I | Transcription |
 63%
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A molecule that can act as a genetic material must fulfill all the following criteria except :

(1) It should be able to generate its replica

(2) It should chemically and structurally be stable

(3) It should provide scope for rapid mutations

(4) It should be able to express itself in the form of "Mendelian Characters"

Subtopic:  DNA vs RNA as Genetic Material |
 83%
From NCERT
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The unequivocal proof that DNA is the genetic material was provided by :

(1) Avery, Macleod and McCarty

(2) Hershey and Chase

(3) Meselson and Stahl

(4) Watson and Crick

Subtopic:  Search for Genetic Material: II | Search for Genetic Material |
 78%
From NCERT
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