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:
The correct match between List I and List II is:
A. Vasectomy - III. Surgical method
B. Coitus interruptus - IV. Natural method
C. Cervical caps - II. Barrier method
D. Saheli - I. Oral method
The correct option is (A): A-III, B-IV, C-II, D-I
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 |
List I (Spectral Lines of Hydrogen for transitions from) | List II (Wavelength (nm)) | ||
A. | n2 = 3 to n1 = 2 | I. | 410.2 |
B. | n2 = 4 to n1 = 2 | II. | 434.1 |
C. | n2 = 5 to n1 = 2 | III. | 656.3 |
D. | n2 = 6 to n1 = 2 | IV. | 486.1 |
The following diagram shown restriction sites in E. coli cloning vector pBR322. Find the role of ‘X’ and ‘Y’gens :