Commonly used vectors for human genome sequencing are:
1.
T-DNA
2.
BAC and YAC
3.
Expression Vectors
4.
T/A cloning Vectors
Forelimbs of cat, lizard used in walking; forelimbs of whale used in swimming and forelimbs of bats used in flying are an example of:
1. Analogous organs
2. Adaptive radiation
3. Homologous organs
4. Convergent evolution
Which one of the following are analogous structures?
1. Wing of Bat and Wings of Pigeon
2. Gills of Prawn and Lungs of Man
3. Thorns of Bougainvillea and Tendrils of Cucurbita
4. Flippers of Dolphin and Legs of Horse.
Which is the particular type of drug that is obtained from the plants whose one flowering branch is shown below?
| 1. | Hallucinogen | 2. | Depressant |
| 3. | Stimulant | 4. | Pain-Killer |
At which stage of HIV infection does one usually show symptoms of AIDS?
| 1. | Within 15 days of sexual contact with an infected person |
| 2. | When the infected retrovirus enters host cells |
| 3. | When HIV damages a large number of helper T - Plymphocytes. |
| 4. | When the viral DNA is produced by reverse transcriptase. |
To obtain virus-free healthy plants from a diseased one by tissue culture technique, which part/parts of the diseased plant will be taken?
| 1. | Apical meristem only |
| 2. | Palisade parenchyma |
| 3. | Both apical and axillary meristems |
| 4. | Epidermis only |
What gases are produced in anaerobic sludge digesters?
1. Methane and CO2
2. Methane, Hydrogen Sulphide and CO2
3. Methane, Hydrogen Sulphide and CO
4. Hydrogen Sulphide and CO2
Just as a person moves from Delhi to Shimla to escape the heat for the duration of hot summer, thousands of migratory birds from Siberia and other extremely cold northern regions move to:
1. Western Ghat
2. Meghalaya
3. Corbett National Park
4. Keoladeo National Park
Given below is a simplified model of phosphorus cycling in a terrestrial ecosystem with four blanks (A-D). Identify the blanks.
| A | B | C | D | |
| 1. | Rock minerals | Detritus | Litter fall | Producers |
| 2. | Litter | Producers | Rock minerals | Detritus |
| 3. | Detritus | Rock minerals | Producers | Litter fall |
| 4 | Producers | Litter fall | Rock minerals | Detritus |
The extent of the global diversity of invertebrates is represented in the image below. Choose the correct combination of groups (A-D) respectively:
| A | B | C | D | |
| 1. | Insects | Crustaceans | Other animal groups | Molluscs |
| 2. | Crustaceans | Insects | Molluscs | Other animal groups |
| 3. | Molluscs | Other animal groups | Crustaceans | Insects |
| 4 | Insects | Molluscs | Crustaceans | Other animal groups |
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