A sequence of how many nucleotides in messenger RNA make a codon for an amino acid:

1. Four

2. One

3. Two

4. Three

Subtopic:  Translation |
 85%
From NCERT
AIPMT - 2004
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DNA fingerprinting refers to:

1.  Analysis of DNA samples using imprinting devices
2.  Techniques used for molecular analysis of different specimens of DNA
3.  Techniques used for the identification of fingerprints of individuals
4.  Molecular analysis of profiles of DNA samples

Subtopic:  DNA Fingerprinting |
From NCERT
AIPMT - 2004
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During transcription, if the nucleotide sequence of the DNA strand that is being coded is ATACG, then the nucleotide sequence in the mRNA would be:

1. TCTGG

2. UAUGC

3. UATGC

4. TATGC

Subtopic:  The DNA | DNA Double Helix |
 83%
From NCERT
AIPMT - 2004
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Number of base pairs in human chromosomes are:

1. 3 × 109

2. 3 × 107

3. 6 × 108

4. 6 × 107

Subtopic:  The DNA |
 88%
From NCERT
AIPMT - 1999
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The following ratio is generally constant for a given species:

1. T + C / G + A 2. G + C / A+ T
3. A + C / T + G 4. A + G / C +T
Subtopic:  DNA Double Helix |
 50%
From NCERT
AIPMT - 2004
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Initiation codon in eukaryotes is:
1.  UGA
2.  CCA
3.  AGA
4.  AUG

Subtopic:  Genetic Code: II |
 95%
From NCERT
AIPMT - 1999
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During the replication of bacterial chromosomes, DNA synthesis starts from a replication origin site and:

1. Is facilitated by telomerase

2. Moves in one direction of the size

3. Moves in a bi-directional way

4. RNA primers are involved

Subtopic:  DNA Replication: II |
From NCERT
AIPMT - 2004
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After a mutation at a genetic locus, the character of an organism changes due to the change in:

1. DNA replication

2. Protein synthesis pattern

3. RNA transcription pattern

4. Protein structure 

Subtopic:  Genetic Code |
From NCERT
AIPMT - 2004
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Gene is composed of:
1.  Amino acids
2.  Polynucleotide
3.  Fatty acid
4.  Nitrogen bases

Subtopic:  The DNA |
 66%
From NCERT
AIPMT - 1999
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Which form of RNA has a structure resembling clover leaf?

1. hn-RNA

2. m-RNA

3. t-RNA

4. r-RNA

Subtopic:  Translation |
 92%
From NCERT
AIPMT - 2004
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