All successions irrespective of the habitat proceed to which type of climax community ?
1. Xeric
2. Mesic
3. Hydrophytic
4. Edaphic
1. Xeric
2. Mesic
3. Hydrophytic
4. Edaphic
79%
Level 2: 60%+
NEET - 2022
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Separation of DNA, fragments is done by a technique known as :
1. Polymerase Chain Reaction
2. Recombinant technology
3. Southern blotting
4. Gel electrophoresis
1. Polymerase Chain Reaction
2. Recombinant technology
3. Southern blotting
4. Gel electrophoresis
Subtopic: Separation and Isolation of DNA fragments |
90%
Level 1: 80%+
NEET - 2022
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The phenomenon by which the undividing parenchyma cells start to divide mitotically during plant tissue culture is called as :
1. Differentiation
2. Dedifferentiation
3. Redifferentiation
4. Secondary growth
1. Differentiation
2. Dedifferentiation
3. Redifferentiation
4. Secondary growth
Subtopic: Differentiation, Dedifferentiation and Redifferentiation |
75%
Level 2: 60%+
NEET - 2022
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In meiosis, crossing over and exchange of genetic material between homologous chromosomes are catalyzed by the enzyme.
1. Phosphorylase
2. Recombinase
3. Transferase
4. Polymerase
1. Phosphorylase
2. Recombinase
3. Transferase
4. Polymerase
Subtopic: Cell Cycle: Meiosis I |
94%
Level 1: 80%+
NEET - 2022
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The 5-C compound formed during TCA cycle is :
1. \(\alpha-\)ketoglutaric acid
2. Oxalo succinic acid
3. Succinic acid
4. Fumaric acid
1. \(\alpha-\)ketoglutaric acid
2. Oxalo succinic acid
3. Succinic acid
4. Fumaric acid
Subtopic: Kreb's Cycle |
89%
Level 1: 80%+
NEET - 2022
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When a carrier protein facilitates the movement of two molecules across the membrane in same direction, it is called :
1. Uniport
2. Transport
3. Antiport
4. Symport
1. Uniport
2. Transport
3. Antiport
4. Symport
Subtopic: Facilitated Diffusion |
82%
Level 1: 80%+
NEET - 2022
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The World Summit on sustainable development held in 2002 in Johannesburg, South Africa pledged for:
| 1. | A significant reduction in the current rate of biodiversity loss. |
| 2. | Declaration of more biodiversity hotspots. |
| 3. | Increase in agricultural production |
| 4. | Collection and preservation of seeds of different genetic strains of commercially important plants. |
Subtopic: Biodiversity Conservation |
84%
Level 1: 80%+
NEET - 2022
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Interfascicular cambium is present between:
1. Primary xylem and primary phloem
2. Pericycle and endodermis
3. Two vascular bundles
4. Secondary xylem and secondary phloem
1. Primary xylem and primary phloem
2. Pericycle and endodermis
3. Two vascular bundles
4. Secondary xylem and secondary phloem
Level 3: 35%-60%
NEET - 2022
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The ascent of xylem sap in plants is mainly accomplished by the:
| 1. | size of the stomatal aperture |
| 2. | distribution of stomata on the upper and lower epidermis |
| 3. | cohesion and adhesion between water molecules |
| 4. | root pressure |
Subtopic: Transpiration Pull: Illustration |
70%
Level 2: 60%+
NEET - 2022
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Which of the following statement is not correct?
| 1. | Rhizome is a condensed form of stem. |
| 2. | The apical bud in rhizome always remains above the ground. |
| 3. | The rhizome is aerial with no distinct nodes and internodes. |
| 4. | The rhizome is thick, prostrate and branched. |
Subtopic: Modifications of Stem |
51%
Level 3: 35%-60%
NEET - 2022
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