Okazaki is known for his contribution to the understanding of
1.  transcription
2.  translation
3.  DNA replication
4.  mutation

Subtopic:  DNA Replication |
 73%
Level 2: 60%+
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The beginning of understanding genetic transformation in bacteria was made by
1.  Frederick Griffith
2.  Hershey and Chase
3.  Watson and Crick
4.  TH Morgan

Subtopic:  Search for Genetic Material |
 78%
Level 2: 60%+
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The source of taq polymerase used in PCR is a

1.  thermophilic fungus
2.  mesophilic fungus
3.  thermophilc bacterium
4.  halophilic bacterium

Subtopic:  Polymerase Chain Reaction: PCR |
 86%
Level 1: 80%+
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A pea plant parent having violet-coloured flowers with unknown genotype was crossed with a plant having white-coloured flowers. In the progeny, 50% of the flowers were violet and 50% were white. The genotypic constitution of the parent having violet-coloured flowers was
 
1.  homozygous
2.  merozygous
3.  heterozygous
4.  hemizygous

 

 71%
Level 2: 60%+
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If the total amount of adenine and thymine in a double-stranded DNA is 45%, the amount of guanine in this DNA will be
1.  22.5%
2.  27.5%
3.  45%
4.  55%

Subtopic:  DNA Double Helix |
 66%
Level 2: 60%+
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Subtopic:  Typhoid Fever |
 86%
Level 1: 80%+
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HIV is a member of a group of viruses called

1.  bacteriophages
2.  geminiviruses
3.  lysogenic viruses
4.  retroviruses

Subtopic:  AIDS |
 88%
Level 1: 80%+
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The number of linkage group(s) present in Escherichia coli is

1.  one
2.  two
3.  four
4.  seven

Subtopic:  Linkage Types |
Level 3: 35%-60%
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Natural cytokinins are synthesized in tissue that are

1.  senescent
2.  dividing rapidly
3.  storing food material
4.  differentiating

Subtopic:  Cytokinin |
 70%
Level 2: 60%+
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Resemblance of one organism to another for protection and hiding is

1.  mimicry
2.  predation
3.  adaptation
4.  camouflage

Subtopic:  Population Interactions: Predation |
 52%
Level 3: 35%-60%
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