Which of the following helps in the termination of transcription?

1. Sigma factor 2. Translocase
3. Ubiquitin 4. Rho factor

Subtopic:  Transcription |
 93%
From NCERT
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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 |
 55%
From NCERT
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Which of the following is true for both transcription and DNA replication?

1. The principle of complementarity governs the processes
2. Only if the two strands act as a template
3. Only a segment of both strands is involved
4. Adenine base pairs with thymine

Subtopic:  DNA Replication | Transcription |
 79%
From NCERT
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Histones are rich in amino acids:

1. Arginine and Lysine
2. Arginine and Leucine
3. Arginine and Isoleucine
4. Aspartate and Glutamate

Subtopic:  DNA Packaging | Solved Problems |
 95%
From NCERT
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The amino acid acceptor arm of the tRNA is at its:

1. DHU loop 2. TψC loop
3. 5’ end 4. 3’ end

Subtopic:  Translation |
 60%
From NCERT
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RNA is not the genetic material in:

1. Tobacco mosaic virus 2. QB bacteriophage
3. HIV 4. Archaebacteria

Subtopic:  Search for Genetic Material |
 75%
From NCERT
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The structure of the ribosome is made of:

1. rRNA and Proteins
2. rRNA and Polysaccharides
3. mRNA, rRNA and tRNA
4. RNA, DNA and Proteins

Subtopic:  Translation |
 81%
From NCERT
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A molecule that can act as a genetic material must fulfil 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:  Search for Genetic Material |
 92%
From NCERT
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Insertion or deletion of how many bases will not cause a frameshift mutation?

1.12.2
3.4.Any number

Subtopic:  Mutations and Genetic Code |
 76%
From NCERT
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What defines a coding and a template strand in the transcription unit?

1. Structural gene 2. Ori
3. Terminator 4. Promoter
Subtopic:  Transcription: I |
 68%
From NCERT
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