Match List-I with List-II
| List-I | List-II | ||
|---|---|---|---|
| (A) | DNA double Helix Model | (I) | Robert Hooke |
| (B) | Cell | (II) | S. Chandrashekhar |
| (C) | Limit of Black hole | (III) | Watson and Crick |
| (D) | Rabies Vaccine | (IV) | Louis Pasteur |
Choose the correct answer from the options given below:
Answer & explanation
Correct answer: option 2
The correct answer is Option (2) → (A) - (III), (B) - (I), (C) - (II), (D) - (IV)
(A) DNA double Helix Model — this matches (III) Watson and Crick. In 1953 James Watson and Francis Crick showed that DNA is made of two strands wound round each other like a twisted ladder.
(B) Cell — this matches (I) Robert Hooke. In 1665 he looked at a thin slice of cork under his microscope, saw small box-like compartments and named them ‘cells’.
(C) Limit of Black hole — this matches (II) S. Chandrashekhar. The Chandrasekhar limit, about 1.4 times the mass of the Sun, is the largest mass a white dwarf star can have; a dead star heavier than this collapses further, into a neutron star or a black hole.
(D) Rabies Vaccine — this matches (IV) Louis Pasteur. The French scientist gave the first rabies vaccine to a boy bitten by a rabid dog in 1885.