Question : A double helical model of DNA was proposed by___________.
Option 1: Watson and Crick
Option 2: Robert Hook
Option 3: Robert Brown
Option 4: Har Gobind Khorana
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Correct Answer: Watson and Crick
Solution : The correct answer is Watson and Crick.
DNA is deoxyribonucleic acid, which is found in almost all the cells that carry genetic material. Watson and Crick proposed the double-helical model of DNA in 1953. According to them, the DNA molecule consists of two strands twisted around each other.
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Question : Who among the following has not received the Nobel Prize?
Option 1: Jawaharlal Nehru
Option 2: Kailash Satyarthi
Option 3: Har Gobind Khorana
Option 4: Mother Teresa
Question : Who among the following scientists used the word 'Protoplasm' for the first time for living cells?
Option 1: Robert Hooke
Option 2: Antony van Leeuwenhoek
Option 3: Jan Evangelista Purkyn
Option 4: Robert Brown
Question : Which among the following is the incorrect pair?
1. First Five-Year Plan - P. C. Mahalanobis Model
2. Second Five-Year Plan - Harrod-Domar Model
3. Third Five-Year Plan - Gadgil Plan
Option 1: 1
Option 2: 2
Option 3: 1 and 2
Option 4: 2 and 3
Question : Who discovered the North Pole?
Option 1: Amundsen
Option 2: Robert Peary
Option 3: John Cabot
Option 4: Captain James Cook
Question : Directions: In the following question, improve the bracketed part of each sentence.
He (is a killing) combination of looks and talent.
(1) is a killer
(2) is a killed
(3) was a killing
(4) No Improvement
Option 1: (1)
Option 2: (2)
Option 3: (3)
Option 4: (4)
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