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#3
30th August 2018, 08:55 AM
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| Re: TIFR Old Papers
I am providing you the sample question paper of Biology of Tata Institute of Fundamental Research TIFR Graduate School Admissions TIFR Graduate School Biology question paper Section A: General 1. Which of the following contribute to climate change? a. The ozone hole b. Lead additives in petrol c. Natural-gas-based power d. All of the above 2. At night, if a torch is pointed at a cats eyes they reflect light back to the source. Why does this phenomenon occur? a. To scare away predators b. To attract mates c. To increase sensitivity to low light d. It is just a side-effect of photoreceptor function 3. A person throws a ball across a field. When the ball is at the highest point of its trajectory, the direction of its velocity and acceleration are a. parallel to each other b. anti-parallel to each other c. inclined to each other at an angle of 45 d. 90 to each other 4. If the radius and height of a cone are both increased by 100%, then its volume is increased by a. 400% b. 300% c. 200% d. 100% 5. If the average of , 2+5, X+6 and 45 is 29, whats ? a. 15 b. 20 c. 24 d. 32 6. The Doppler effect causes a change in the perceived frequency of a moving source of sound. Suppose an ambulance is moving with constant speed down a road, and a listener is standing next to the road on a footpath. Why does the frequency of the ambulance siren appear to change most abruptly when it passes closest to the listener? a. Because this is where the greatest change of relative velocity occurs b. Because the Doppler effect acts most strongly at short distances c. Because human hearing is more sensitive to the frequency of louder sounds d. All of the above 7. A goat consumes 2 kg of grass per day, and a cow consumes 4 kg of grass per day. Two pairs of goats and one pair of cattle are released in a sanctuary with a total biomass of 16,000 kg of grass at the time of release. The growth rate of grass accounts for an increase of 1000 kg every 100 days. How much grass stands after 1000 days? a. 100 kg b. 500 kg c. 1,000 kg d. 10,000 kg 8. You have caught 100 flies, marked them, and released them back in a greenhouse of area 100 m 2 . Assume the fly population doubles every 4 days; assume no flies die. After 12 days, you catch 400 flies and find that 10 out of them are marked. What is your estimate of the number of flies in the greenhouse at the start of your experiment? a. 500 b. 800 c. 1,000 d. 4,000 9. In his 2001 book What Evolution Is Ernst Mayr has said that behavior is the pacemaker of evolution. The most appropriate way to refer to this and avoid plagiarism is to note: a. Behaviour is the timekeeper of evolutionary processes. b. Behaviour is the pacemaker for evolutionary processes (Mayr, 2001). c. Behaviour is the pacemaker of evolution (Mayr, 2001). d. Any of the above 10. A large cube is formed from the material obtained by melting three smaller cubes with sides 3, 4 and 5 cm respectively. What is the ratio of the total surface areas of the smaller cubes and the large cube? a. 2:1 b. 25:18 c. 3:2 d. 27:20 11. Consider the graphs of the two linear equations ax + by = c and bx - ay = c, where a, b and c are all greater than zero. These graphs a. are perpendicular b. are parallel c. intersect at an acute angle d. intersect at more than one point 12. If you roll three fair six-sided dice, what is the probability that you get two sixes and one odd number, in any order? a. 1/36 b. 1/72 c. 1/24 d. 5/9 13. In a football tournament of repeated games between two teams, team A scored more goals while team B won more games. What can you conclude? a. Team B won more games in the first half of the tournament b. Team B scored more goals first half of the tournament c. Team A had larger goal victory margins in the games they won d. Team B had larger goal victory margins in the games they won TIFR Graduate School Biology question paper     Contact- TIFR Tata Institute of Fundamental Research, Cherlapalli Industrial Area, Cherlapalli, Secunderabad, Telangana 500062 |