Match List I with List II.
List I | List II | ||
| A | Vasectomy | I | Oral method |
| B | Coitus interruptus | II | Barrier method |
| C | Cervical cap | III | Surgical method |
| D | Saheli | IV | Natural method |
Choose the correct answer from the options given below:
| List - I (Period) | List - II (Population Growth Characteristics) | ||
| (A) | 1901 - 1921 | (I) | Period of Population Explosion |
| (B) | 1921 - 1951 | (II) | Gradually slowing down of growth rate |
| (C) | 1951 - 1981 | (III) | Period of steady Population Growth |
| (D) | 1981 - till present | (IV) | Stagnant or stationery phase of growth |
The output (Y) of the given logic implementation is similar to the output of an/a …………. gate.
What is Microalbuminuria ?

In the above represented plasmid an alien piece of DNA is inserted at the EcoRI site. Which of the following strategies will be chosen to select the recombinant colonies?