The correct order of steps in Polymerase Chain Reaction (PCR) is:
1. Extension, Denaturation, Annealing
2. Annealing, Extension, Denaturation
3. Denaturation, Extension, Annealing
4. Denaturation, Annealing, Extension
1. Extension, Denaturation, Annealing
2. Annealing, Extension, Denaturation
3. Denaturation, Extension, Annealing
4. Denaturation, Annealing, Extension
Subtopic: Polymerase Chain Reaction: PCR |
84%
From NCERT
NEET - 2018
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Secondary xylem and phloem in dicot stem are produced by?
| 1. | Apical meristems | 2. | Vascular cambium |
| 3. | Phellogen | 4. | Axillary meristems |
Subtopic: Dicot Stem |
85%
From NCERT
NEET - 2018
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Pneumatophores occur in:
1. Halophytes
2. Free-floating hydrophytes
3. Carnivorous plants
4. Submerged hydrophytes
1. Halophytes
2. Free-floating hydrophytes
3. Carnivorous plants
4. Submerged hydrophytes
Subtopic: Modification of Roots |
70%
NEET - 2018
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Subtopic: Modification of Roots |
76%
From NCERT
NEET - 2018
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Which of the following statement is correct?
| 1. | Ovules are not enclosed by the ovary wall in gymnosperms. |
| 2. | Selaginella is heterosporous, while Salvinia is homosporous. |
| 3. | Horsetails are gymnosperms. |
| 4. | Stems are usually unbranched in both Cycas and Cedrus. |
Subtopic: Gymnosperms: I | Gymnosperms |
80%
From NCERT
NEET - 2018
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Select the wrong statement:
| 1. | Cell wall is present in members of Fungi and Plantae. |
| 2. | Mushrooms belong to Basidiomycetes. |
| 3. | Pseudopodia are locomotory and feeding structures in Sporozoans. |
| 4. | Mitochondria are the powerhouse of the cell in all kingdoms except Monera. |
Subtopic: Protozoa |
66%
From NCERT
NEET - 2018
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Subtopic: Anatomy of Root |
78%
From NCERT
NEET - 2018
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Plants having little or no secondary growth are:
1. Grasses
2. Deciduous angiosperms
3. Conifers
4. Cycads
2. Deciduous angiosperms
3. Conifers
4. Cycads
Subtopic: Secondary Growth in Root (OLD NCERT) |
85%
From NCERT
NEET - 2018
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Which one is wrongly matched?
1. Uniflagellate gametes - Polysiphonia
2. Biflagellate zoospores - Brown algae
3. Gemma cups - Marchantia
4. Unicellular organism - Chlorella
1. Uniflagellate gametes - Polysiphonia
2. Biflagellate zoospores - Brown algae
3. Gemma cups - Marchantia
4. Unicellular organism - Chlorella
Subtopic: Rhodophyceae: Red Algae and Importance of Algae |
82%
From NCERT
NEET - 2018
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Match the items given in Column I with those in Column II and select the correct option given below:
| Column I | Column II | ||
| a. | Herbarium | i. | It is a place having a collection of preserved plants and animals. |
| b. | Key | ii. | A list that enumerates methodically all the species found in an area with a brief description aiding identification. |
| c. | Museum | iii. | Is a place where dried and pressed plant specimens mounted on sheets are kept. |
| d. | Catalogue | iv. | A booklet containing a list of characters and their alternates which are helpful in the identification of various taxa. |
| a | b | c | d | |
| 1. | i | iv | iii | ii |
| 2. | iii | ii | i | iv |
| 3. | ii | iv | iii | i |
| 4. | iii | iv | i | ii |
Subtopic: Taxonomical Aids: Part 1 (OLD NCERT) | Taxonomical Aids: Part 2 (OLD NCERT) | Taxonomical Aids (OLD NCERT) |
67%
From NCERT
NEET - 2018
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