TIFR GS Biology Answer Key

I want to appear in the TIFR Graduate School (GS) for Biology Program. So I am doing preparation for entrance exam. I have some previous years question papers but I don’t have their answer keys. So any one gives me answer keys of all previous years question papers of TIFR Graduate School (GS) Biology Entrance Exam.

Can you provide me the Biology question paper for Graduate School Admissions (GS-2018) of Tata Institute of Fundamental Research as I have the answer key but not the question paper?

[pooja]

The Biology question paper for Graduate School Admissions (GS-2018) of Tata Institute of Fundamental Research is as follows:

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 X, 2X+5, X+6 and 45 is 29, whats X?
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


Biology Question Paper GS-2018 Tata Institute of Fundamental Research