A cup has 105 bacterial cells. Each bacterial cell divides in 35 minutes. What shall be the number of bacteria after 175 min?

1. \(2 \times 10 ^ 5\) 2. \(5 \times 10 ^ 5\)
3. \(32 \times 10 ^ 5\) 4. \(16 \times 10 ^ 5\)
Subtopic:  DNA Replication: I |
 59%
AIPMT - 1998
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Which of the following exercises control over transcription:
1.  Operator
2.  Regulator
3.  Promoter
4.  Recon

Subtopic:  Gene Regulation: Lac Operon |
From NCERT
AIPMT - 1998
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Transduction in bacteria is carried out by:
1.  Bacteriophage
2.  B.G.A.
3.  Mycoplasma
4.  Rickettsiae

Subtopic:  Search for Genetic Material: II |
 85%
AIPMT - 1998
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Hints

Variations in proteins are due to:
1.  Sequence of amino acids
2.  Number of amino acids
3.  R–group
4.  None

Subtopic:  Translation |
 75%
From NCERT
AIPMT - 1998
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Segments of DNA which can move in a genome:
1.  Transposons
2.  Introns
3.  Exons
4.  Cistrons

Subtopic:  Transcription: IV |
AIPMT - 1998
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Hints

Number of base pairs in human chromosomes are:

1. 3 × 109

2. 3 × 107

3. 6 × 108

4. 6 × 107

Subtopic:  The DNA |
 87%
From NCERT
AIPMT - 1999
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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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Gene is composed of:
1.  Amino acids
2.  Polynucleotide
3.  Fatty acid
4.  Nitrogen bases

Subtopic:  The DNA |
 65%
From NCERT
AIPMT - 1999
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The molecular weight of DNA in yeast is:

1. 2. 56 × 109

2.  0.5  × 109

3. 7 × 107

4. 6 × 106

Subtopic:  The DNA |
AIPMT - 1999
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Hints

In inducible operon, regulatory gene synthesizes:
1. Promoter
2. Operator
3. Repressor
4. Aporepressor

Subtopic:  Gene Regulation: Lac Operon |
 73%
From NCERT
AIPMT - 1999
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To view explanation, please take trial in the course.
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