In sea urchin DNA, which is double stranded 17% of the bases were shown to be

cytosine. The percentages of the other three bases expected to be present in this DNA

are

1. G/34%, A/24.5%, T/24.5%

2. G/17%, A/16.5%, T/32.5%

3. G/17%, A/33%, T/33%

4. G/8.5%, A/50%, T/24.5%

Subtopic:  The DNA |
 88%
NEET - 2015
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Transformation was discovered by

(1) Meselson and Stahl

(2) Hershey and Chase

(3) Griffith

(4) Watson and Crick

Subtopic:  Search for Genetic Material:I | Search for Genetic Material |
 82%
From NCERT
NEET - 2014
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Select the correct option 

 

 Direction of RNA synthesis 

 Direction of reading of the template DNA strand 

(1)

5'-3'

3'-5'

(2)

3'-5'

5'-3'

(3)

5'-3'

5'-3'

(4)

3'-5'

3'-5'

 

 

 

Subtopic:  Transcription:II | Transcription |
 70%
From NCERT
NEET - 2014
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Commonly used vectors for human genome sequencing are

(1) T-DNA

(2) BAC and YAC

(3) Expression vectors

(4) T/A cloning vectors

Subtopic:  Human Genome Project |
 91%
From NCERT
NEET - 2014
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Which enzymes/s will be produced in a cell in which there is a non-sense mutation in the lac Y gene?

(1) β-galactosidase

(2) Lactose permease

(3) Transacetylase

(4) Lactose permease and transacetylase

Subtopic:  Gene Regulation: Lac Operon |
From NCERT
NEET - 2013
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Removal of RNA polymerase III from nucleoplasm will affect the synthesis of

(1) tRNA

(2) hnRNA

(3) mRNA

(4) rRNA

Subtopic:  Transcription: IV | Transcription |
 69%
From NCERT
NEET - 2012
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PCR and Restriction Fragment Length Polymorphism are the methods for

1. study of enzymes

2. genetic transformation

3. DNA sequencing

4. genetic fingerprinting

Subtopic:  DNA Fingerprinting |
 63%
From NCERT
NEET - 2012
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Which one of the following is not a part of a transcription unit in DNA?

(1) The inducer

(2) A terminator

(3) A promoter

(4) The structural gene

Subtopic:  Transcription:II | Transcription |
 86%
From NCERT
NEET - 2012
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If one strand of DNA has the nitrogenous base sequence as ATCTG, what would be the complementary RNA strand sequence?

(1) TTAGU

(2) UAGAC

(3) AACTG

(4) ATCGU

Subtopic:  Transcription:II | Transcription |
 92%
From NCERT
NEET - 2012
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Removal of introns and joining of exons in a defined order during transcription is called

(1) looping

(2) inducing

(3) capping

(4) splicing

Subtopic:  Transcription: IV | Transcription |
 89%
From NCERT
NEET - 2012
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