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: Asexual Reproduction |
56%
Level 3: 35%-60%
NEET - 2022
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To ensure that only the desired pollens fall on the stigma in artificial hybridization process :
Choose the correct answer from the options given below :
| (a) | the female flower buds of plant producing unisexual flower need not be bagged. |
| (b) | there is no need to emasculate unisexual flowers of selected female parent |
| (c) | emasculated flowers are to be bagged immediately after cross pollination |
| (d) | emasculated flowers are to be bagged after removal of anthers |
| (e) | bisexual flowers, showing protogyny are never selected for cross |
Choose the correct answer from the options given below :
| 1. | (a), (b) and (c) only | 2. | (b), (c) and (d) only |
| 3. | (b), (c) and (e) only | 4. | (a), (d) and (e) only |
Subtopic: Pollination & Outbreeding Devices | Post Pollination Events |
76%
Level 2: 60%+
NEET - 2022
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The chromosomal theory of inheritance was proposed by :
| 1. | Thomas Morgan | 2. | Sutton and Boveri |
| 3. | Gregor Mendel | 4. | Robert Brown |
Subtopic: Chromosomal Basis of Inheritance: Introduction | Chromosomal Basis of Inheritance: Further Considerations |
81%
Level 1: 80%+
NEET - 2022
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Which of the following protects nitrogenase inside the root nodule of a leguminous plant ?
| 1. | Catalase | 2. | leg haemoglobin |
| 3. | Transaminase | 4. | Glutamate dehydrogenase |
93%
Level 1: 80%+
NEET - 2022
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The ability of plants to follow different pathways in response to environment leading to formation of different kinds of
structures is called :
structures is called :
| 1. | Redifferentiation | 2. | Development |
| 3. | Plasticity | 4. | Differentiation |
Subtopic: Development |
92%
Level 1: 80%+
NEET - 2022
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Which of the following pair represents free living nitrogen fixing aerobic bacteria?
1. Rhizobium and Frankia
2. Azotobacter and Beijernickia
3. Anabaena and Rhodospirillum
4. Pseudomonas and Thiobacillus
1. Rhizobium and Frankia
2. Azotobacter and Beijernickia
3. Anabaena and Rhodospirillum
4. Pseudomonas and Thiobacillus
Subtopic: Genetics & Biochemistry of Nitrogen Fixation |
74%
Level 2: 60%+
NEET - 2022
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Match List-I with List-II :
Choose the correct answer from the options given below :
| List-I | List-II | ||
| (a) | Sacred groves | (i) | Alien species |
| (b) | Zoological park | (ii) | Release of large quantity of oxygen |
| (c) | Nile perch | (iii) | Ex-situ conservation |
| (d) | Amazon forest | (iv) | Khasi Hills in Meghalaya |
| (a) | (b) | (c) | (d) | |
| 1. | (iv) | (iii) | (i) | (ii) |
| 2. | (ii) | (iv) | (i) | (iii) |
| 3. | (iv) | (i) | (ii) | (iii) |
| 4. | (iv) | (iii) | (ii) | (i) |
Subtopic: In Situ Conservation of Biodiversity |
94%
Level 1: 80%+
NEET - 2022
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Primary proteins are also called as polypeptides because :
| 1. | They are linear chains |
| 2. | They are polymers of peptide monomers |
| 3. | Successive amino acids are joined by peptide bonds |
| 4. | They can assume many conformations |
Subtopic: Proteins |
63%
Level 2: 60%+
NEET - 2022
Hints
Match List-I with List-II :
Choose the correct answer from the options given below :
| List-I | List-II | ||
| (a) | Gene gun | (i) | Replacement of a faulty gene by a normal healthy gene |
| (b) | Gene therapy | (ii) | Used for transfer of gene |
| (c) | Gene cloning | (iii) | Total DNA in the cells of an organism |
| (d) | Genome | (iv) | To obtain identical copies of a particular DNA molecule |
| (a) | (b) | (c) | (d) | |
| 1. | (ii) | (i) | (iv) | (iii) |
| 2. | (i) | (iii) | (ii) | (iv) |
| 3. | (iv) | (i) | (iii) | (ii) |
| 4. | (ii) | (iii) | (iv) | (i) |
Subtopic: Process of Biotech | Transforming Plant & Animal Cell |
93%
Level 1: 80%+
NEET - 2022
Hints
Match List-I with List-II
Choose the correct answer from the options given below:
| List- I | List-II | ||
| (a) | Bacteriophage \(\phi \times 174\) | (i) | 48502 base pairs |
| (b) | Bacteriophage lambda | (ii) | 5386 nucleotides |
| (c) | Escherichia coli | (iii) | 3.3 × 109 base pairs |
| (d) | Haploid content human DNA | (iv) | 4.6 × 106 base pairs |
| (a) | (b) | (c) | (d) | |
| 1. | (i) | (ii) | (iii) | (iv) |
| 2. | (ii) | (iv) | (i) | (iii) |
| 3. | (ii) | (i) | (iv) | (iii) |
| 4. | (i) | (ii) | (iv) | (iii) |
Subtopic: The DNA |
78%
Level 2: 60%+
NEET - 2022
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