Questions

Read the passage carefully and choose the best answer to each question out of the four alternatives.

Genetic variation is the cornerstone of evolution, without which there can be no natural selection, and so a low genetic diversity decreases the ability of a species to survive and reproduce, explains lead author Yoshan Moodley, Professor at the Department of Zoology, University of Venda in South Africa.

Two centuries ago, the black rhinoceros – which roamed much of sub Saharan Africa – had 64 different genetic lineages; but today only 20 of these lineages remain, says the paper. The species is now restricted to five countries, South Africa, Namibia, Kenya, Zimbabwe and Tanzania. Genetically unique populations that once existed in Nigeria, Cameroon, Chad, Eritrea, Ethiopia, Somalia, Mozambique, Malawi and Angola have disappeared. The origins of the 'genetic erosion' coincided with colonial rule in Africa and the popularity of big game hunting. From the second half of the 20th century, however, poaching for horns has dramatically depleted their population and genetic diversity, especially in Kenya and Tanzania.

Sub Sharan Africa has lost how many black rhino genetic lineages in 200 years?

A citizen of India will lose his or her citizenship if he or she

1.renounces Indian citizenship

2.voluntarily acquires the citizenship of another country

3.marries a citizen of another country

4.criticizes the Government

Select the correct answer using the code given below.

Maths Challenge

Improve the bracketed part of the sentence.

The guide's (knowledge) of the history of the monument surprised me.

Which one of the following rivers is recharged by subsoil water?

The central principle of physiology is

The gravitational force of attraction between two bodies is ____________________ the distance between the two bodies.

Improve the bracketed part of the sentence.

The telecom sector is the backbone to the Digital India vision and it deserves an (enabled) regulatory environment.