Famous Personalities and Discoveries

This is the correct option. Gregor Johann Mendel is known as the Father of Genetics.

Hugo Grotius (1583-1645) is considered the father of modern international law and belongs to the Philosophical School of jurisprudence. His work 'De Jure Belli ac Pacis' laid natural law foundations. He is not associated with Realist, Analytical, or Historical schools.

The DNA profiling technique was first reported in 1984 by Sir Alec Jeffreys at the University of Leicester in England, and is now the basis of several national DNA databases.

Yes, it is the correct answer. He arranged three elements in one group which is known as ‘triad’. Such arrangements of elements are known as Dobereiner’s triads.

Newton was an unknown scientist initially (as stated), yet he made groundbreaking discoveries in physics, mathematics, and astronomy. 'Solved many mysteries of nature' best captures his achievements like laws of motion, gravity, and calculus. The other options are inappropriate - he didn't waste money or claim others' work.

He is father of modern genetics.

Hugo Grotius was a towering figure in philosophy, political theory, law and associated fields during the 17^th century and for hundreds of years afterwards. His work ranged over a wide array of topics, though he is best known to philosophers today for his contributions to the natural law theories of normativity.

Paul Ehrlich is called 'The Father of Chemotherapy'.

Sir Henry Dunant, in 1864, founded the Red cross.

The first pendulum clock was invented by Christiaan Huygens in 1656.

Lord Dalhousie introduced the Doctrine of Lapse in 1848, which stated that if a princely state ruler died without a direct male heir, the state would 'lapse' to British rule (be annexed). Satara, Jhansi, Udaipur, and Nagpur were among the states annexed under this policy.

Jeremy Bentham was an English philosopher who defined fact as 'a physical and psychological fact'.

Aryabhata, the renowned Indian astronomer and mathematician (476-550 AD), proposed that Earth rotates on its axis and that bodies gravitate toward Earth. In his work 'Aryabhatiya,' he discussed the concept of gravity centuries before Newton. Brahmagupta later formalized gravitational theory more explicitly in the 7th century.

Dmitri Ivanovich Mendeleev developed the Periodic Law in 1869, arranging elements by atomic weight and predicting undiscovered elements. Niels Bohr developed atomic structure theory, Huygens studied wave optics, and Newton formulated classical mechanics.

It is the correct answer. Thomas Robert Malthus was the first economist to propose a systematic theory of population.