In the equation
GPP is Gross Primary Productivity. NPP is net Primary Productivity. R here is ___________
1. Reproductive allocation
2. Photosynthetically active radiation
3. Respiratory quotient
4. Respiratory loss
GPP is Gross Primary Productivity. NPP is net Primary Productivity. R here is ___________
1. Reproductive allocation
2. Photosynthetically active radiation
3. Respiratory quotient
4. Respiratory loss
Subtopic: Β Ecosystem Productivity |
Β 89%
Level 1: 80%+
NEET - 2023
Hints
Which hormone promotes internode / petiole elongation in deep water rice?
| 1. | 2, 4-D | 2. | GA3 |
| 3. | Kinetin | 4. | Ethylene |
Subtopic: Β Ethylene |
Β 70%
Level 2: 60%+
NEET - 2023
Hints
Axile placentation is observed in:
1. China rose, Petunia and Lemon
2. Mustard, Cucumber and Primrose
3. China rose, Beans and Lupin
4. Tomato, Dianthus and Pea
1. China rose, Petunia and Lemon
2. Mustard, Cucumber and Primrose
3. China rose, Beans and Lupin
4. Tomato, Dianthus and Pea
Subtopic: Β Flower & Parts of Flower |
Β 83%
Level 1: 80%+
NEET - 2023
Hints
The process of appearance of recombination nodules occurs at which sub stage of prophase I in meiosis?
| 1. | Diakinesis | 2. | Zygotene |
| 3. | Pachytene | 4. | Diplotene |
Subtopic: Β Cell Cycle: Meiosis I |
Β 80%
Level 1: 80%+
NEET - 2023
Hints
The thickness of ozone in a column of air in the atmosphere is measured in terms of :
| 1. | Kilobase | 2. | Dobson unit |
| 3. | Decibels | 4. | Decameter |
Subtopic: Β Ozone Layer Depletion |
Β 79%
Level 2: 60%+
NEET - 2023
Hints
Which of the following stages of meiosis involves division of centromere?
| 1. | Telophase | 2. | Metaphase I |
| 3. | Metaphase II | 4. | Anaphase II |
Subtopic: Β Cell Cycle: Meiosis II |
Β 81%
Level 1: 80%+
NEET - 2023
Hints
Identify the correct statements:
Choose the correct answer from the options given below:
| A: | Detrivores perform fragmentation. |
| B: | The humus is further degraded by some microbes during mineralization. |
| C: | Water soluble inorganic nutrients go down into the soil and get precipitated by a process called leaching. |
| D: | The detritus food chain begins with living organisms. |
| E: | Earthworms break down detritus into smaller particles by a process called catabolism. |
Choose the correct answer from the options given below:
| 1. | D, E, A only | 2. | A, B, C only |
| 3. | B, C, D only | 4. | C, D, E only |
Subtopic: Β Decomposition |
Β 84%
Level 1: 80%+
NEET - 2023
Hints
In angiosperm, the haploid, diploid and triploid structures of a fertilized embryo sac sequentially are :
| 1. | Synergids, antipodals and Polar nuclei |
| 2. | Synergids, Primary endosperm nucleus and zygote |
| 3. | Antipodals, synergids, and primary endosperm nucleus |
| 4. | Synergids, Zygote and Primary endosperm nucleus |
Subtopic: Β Double Fertilization |
Β 81%
Level 1: 80%+
NEET - 2023
Hints
Among 'The Evil Quartet', which one is considered the most important cause driving extinction of species?
1. Co-extinctions
2. Habitat loss and fragmentation
3. Over exploitation for economic gain
4. Alien species invasions
1. Co-extinctions
2. Habitat loss and fragmentation
3. Over exploitation for economic gain
4. Alien species invasions
Subtopic: Β Loss of Biodiversity |
Β 84%
Level 1: 80%+
NEET - 2023
Hints
In gene gun method used to introduce alien DNA into host cells, microparticles of ___________ metal are used.
| 1. | Silver | 2. | Copper |
| 3. | Zinc | 4. | Tungsten or gold |
Subtopic: Β Transforming Plant & Animal Cell |
Β 94%
Level 1: 80%+
NEET - 2023
Hints
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