Which of the following is required as an inducer(s) for the expression of lac operon?
1. galactose
2. lactose
3. lactose and galactose
4. glucose

Subtopic:  Gene Regulation: Lac Operon |
 86%
Level 1: 80%+
NEET - 2016
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Which of the following is wrongly matched in the given table? 

Microbe Product Application
1. Monascus purpureus Statins Lowering of blood cholesterol
2. Streptococcus Streptokinase Removal of clot from blood vessel
3. Clostridium butylicum Lipase Removal of oil stains
4. Trichoderma polysporum Cyclosporin-A Immunosuppressive

Subtopic:  Chemicals, Enzymes & Other Bioactive Molecules |
 91%
Level 1: 80%+
NEET - 2016
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When does the growth rate of a population following the logistic model equal zero? The logistic model is given as dN/dt = rN(1-N/K):
1. when N nears the carrying capacity of the habitat
2. when N/K equals zero
3. when the death rate is greater than the birth rate
4. when N/K is exactly one
Subtopic:  Population: Logistic Growth Model |
 65%
Level 2: 60%+
NEET - 2016
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Which one of the following statements is not true?
1. Exine of pollen grains is made up of sporopollenin
2. Pollen grains of many species cause severe allergies
3. Stored pollen in liquid nitrogen can be used in crop breeding programs
4. Tapetum helps in the dehiscence of anther
Subtopic:  Stamen: Anther |
 90%
Level 1: 80%+
NEET - 2016
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In bryophytes and pteridophytes, transport of male gametes requires?

1. insects 2. birds
3. water 4. wind
Subtopic:  Bryophytes | Pteridophytes |
 92%
Level 1: 80%+
NEET - 2016
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Which of the following is not a stem modification?
1. Thorns of citrus
2. Tendrils of cucumber
3. Flattened structure of Opuntia
4. Pitcher of Nepenthes
Subtopic:  Morphology of Stems |  Modifications of Stem |
 82%
Level 1: 80%+
NEET - 2016
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Which one of the following cell organelles is enclosed by a single membrane?
1. Chloroplasts 2. Lysosomes
3. Nuclei 4. Mitochondria
Subtopic:  Lysosomes |
 89%
Level 1: 80%+
NEET - 2016
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Analogous structures are results of?
1. convergent evolution 2. shared ancestry
3. stabilizing selection 4. divergent evolution
Subtopic:  Concept of Organic Evolution: Evidence: 2 | Concept of Organic Evolution: Evidence |
 93%
Level 1: 80%+
NEET - 2016
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Which one of the following statements is incorrect?
1. Cellulose is a polysaccharide
2. Uracil is a pyrimidine
3. Glycine is a sulphur-containing amino acid
4. Sucrose is a disaccharide
Subtopic:  Different Amino Acids |
 85%
Level 1: 80%+
NEET - 2016
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Proximal end of the filament of stamen is attached to the?
1. connective 2. placenta
3. thalamus or petal 4. anther
Subtopic:  Stamen: Anther |
 88%
Level 1: 80%+
NEET - 2016
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