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
Hints
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
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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Which of the following is not required for any of the techniques of DNA fingerprinting available at present?
1. Zinc finger analysis
2. Restriction enzymes
3. DNA –DNA hybridisation
4. Polymerase chain reaction
2. Restriction enzymes
3. DNA –DNA hybridisation
4. Polymerase chain reaction
Subtopic: DNA Fingerprinting |
82%
Level 1: 80%+
NEET - 2016
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Which of the following characteristics is not shared by birds and mammals?
1. Breathing using lungs
2. Viviparity
3. Warm-blooded nature
4. Ossified endoskeleton
1. Breathing using lungs
2. Viviparity
3. Warm-blooded nature
4. Ossified endoskeleton
Subtopic: Study of Aves & Mammals |
62%
Level 2: 60%+
NEET - 2016
Hints
Select the incorrect statement:
| 1. | LH and FSH trigger ovulation in ovary. |
| 2. | LH and FSH decrease gradually during the follicular phase. |
| 3. | LH triggers the secretion of androgens from the Leydig cells. |
| 4. | FSH stimulates the sertoli cells which help in spermiogenesis |
Subtopic: Introduction to Menstrual Cycle: 2 | Menstrual Cycle: Pre Ovulatory Phase | Menstrual Cycle |
78%
Level 2: 60%+
NEET - 2016
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The amino acid, tryptophan is the precursor for the synthesis of?
1. thyroxine and tri-iodothyronine
2. estrogen and progesterone
3. cortisol and cortisone
4. melatonin and serotonin
1. thyroxine and tri-iodothyronine
2. estrogen and progesterone
3. cortisol and cortisone
4. melatonin and serotonin
Subtopic: Pineal Gland |
Level 3: 35%-60%
NEET - 2016
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