The appearance of recombination nodules on homologous chromosomes during meiosis characterizes:
| 1. | Terminalization |
| 2. | Synaptonemal complex |
| 3. | Bivalent |
| 4. | Sites at which crossing over occurs |
Subtopic: Cell Cycle: Meiosis I |
76%
Level 2: 60%+
NEET - 2022
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Which one of the following statement is not true regarding gel electrophoresis technique?
| 1. | Bright orange coloured bands of DNA can be observed in the gel when exposed to UV light. |
| 2. | The process of extraction of separated DNA strands from gel is called elution. |
| 3. | The separated DNA fragments are stained by using ethidium bromide. |
| 4. | The presence of chromogenic substrate gives blue coloured DNA bands on the gel. |
Subtopic: Separation and Isolation of DNA fragments |
84%
Level 1: 80%+
NEET - 2022
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The gaseous plant growth regulator is used in plants to:
| 1. | kill dicotyledonous weeds in the fields |
| 2. | speed up the malting process |
| 3. | promote root growth and root hair formation to increase the absorption surface |
| 4. | help overcome apical dominance |
Subtopic: Ethylene |
76%
Level 2: 60%+
NEET - 2022
Hints
Read the following statements about the vascular bundles:
Choose the correct answer from the options given below:
| a. | In roots, xylem and phloem in a vascular bundle are arranged in an alternate manner along the different radii. |
| b. | Conjoint closed vascular bundles do not possess cambium. |
| c. | In open vascular bundles, cambium is present in between xylem and phloem. |
| d. | The vascular bundles of dicotyledonous stem possess endarch protoxylem. |
| e. | In monocotyledonous root, usually there are more than six xylem bundles present. |
| 1. | (a), (c), (d) and (e) only | 2. | (a), (b) and (d) only |
| 3. | (b), (c), (d) and (e) only | 4. | all statements are correct |
Subtopic: Vascular Tissue System |
66%
Level 2: 60%+
NEET - 2022
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Which of the following is incorrectly matched?
1. Volvox - Starch
2. Ectocarpus - Fucoxanthin
3. Ulothrix - Mannitol
4. Porphyra - Floridian starch
1. Volvox - Starch
2. Ectocarpus - Fucoxanthin
3. Ulothrix - Mannitol
4. Porphyra - Floridian starch
Subtopic: Chlorophyceae: Green Algae: I |
81%
Level 1: 80%+
NEET - 2022
Hints
What amount of energy is released from glucose during lactic acid fermentation?
| 1. | Less than 7% | 2. | Approximately 15% |
| 3. | More than 18% | 4. | About 10% |
Subtopic: Fermentation |
90%
Level 1: 80%+
NEET - 2022
Hints
XO type of sex determination can be found in:
1. Monkeys
2. Drosophila
3. Birds
4. Grasshoppers
1. Monkeys
2. Drosophila
3. Birds
4. Grasshoppers
Subtopic: Sex Determination |
85%
Level 1: 80%+
NEET - 2022
Hints
What is the net gain of ATP when each molecule of glucose is converted to two molecules of pyruvic acid?
| 1. | Eight | 2. | Four |
| 3. | Six | 4. | Two |
Subtopic: Glycolysis |
69%
Level 2: 60%+
NEET - 2022
Hints
"Girdling Experiment" was performed by Plant Physiologists to identify the plant tissue through which:
| 1. | osmosis is observed |
| 2. | water is transported |
| 3. | food is transported |
| 4. | for both water and food transportation |
Subtopic: The Pressure Flow or Mass Flow Hypothesis |
58%
Level 3: 35%-60%
NEET - 2022
Hints
Which of the following is not a method of ex situ conservation?
| 1. | Cryopreservation | 2. | In vitro fertilization |
| 3. | National Parks | 4. | Micropropagation |
Subtopic: Ex Situ Conservation of Biodiversity |
76%
Level 2: 60%+
NEET - 2022
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