2017 SSC CGL 21 Aug Shift-2

Instructions

A passage is given with 5 questions following it. 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.

Question 21

What is important for evolution?

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Question 22

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

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Question 23

Genetically unique black rhinoceros has been lost in all of the following countries, except?

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Question 24

From the second half of the 20th century what has caused a dramatic fall in black rhinoceros population?

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Question 25

Genetic diversity is proportional to __________.

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Instructions

For the following questions answer them individually

Question 26

Select the related word from the given alternatives.

Pencil : Lead :: Pen : ?

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Question 27

Select the related letters from the given alternatives.

DGI : JMO :: RUW : ?

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Question 28

Select the related number from the given alternatives.

236 : 472 :: 123 : ?

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Question 29

Select the odd word from the given alternatives.

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Question 30

Select the odd letters from the given alternatives.

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