Option 1. 75 Option 2. 79 Option 3. 82 Option 4. 84

Select correct statement w.r.t Nostoc. A. It is a filamentous blue-green algae B. Has ability to fix atmospheric nitrogen in specialised cells having thin wall C. Performs oxygenic photosynthesis Option 1 A & B Option 2 B & C Option 3 only C Option 4 A & C

Arrange the following basic forces in the increasing order of relative strength 1. Gravitational force 2. Electromagnetic force 3. Weak nuclear force 4. Strong nuclear force Option 1 1,2,3,4 Option 2 1,3,2,4 Option 3 4,3,2,1 Option 4 4,1,2,3

In which year didi Hahn and Mietner discover the phenomenon of neutron-induced fission of uranium ? Option 1938 Option 2 1950 Option 3 1945 Option 4 1928

A naked RNA particle causing the symptoms like that of a virus disease is known as Option 1 Viroid Option 2 Virion Option 3 Virus Option 4 Prion

How many of following features are correct w.r.t Gonyaulax ? Diatomaceous earth, anterior two unequal flagella, toxin kill fishes, chief producers in ocean, red tides, stiff cellulose plate Option 1 four Option 2 three Option 3 six Option 4 two

Lightning was discovered by option 1 ohm option 2 Thomson Option 3 Franklin Option 4 Faraday

A bag contains 150 nuts and 50 bolts. Half of the bolts and half of the nuts are rusted. One item is drawn at random from the bag. The probability that it is either rusted or a bolt is Option1 3/8 Option2 5/8 Option3 1/4 Option4 1/2

If log 2 4 , log √2 8 and log 3 9 k-1 are consecutive terms of GP, then the number of integers that satisfy the system of inequalities x^2-x>6 and |x| Option a 193 Option b 194 Option c 195 Option d 196

The figure obtained by joining the mid-points of the sides of a rhombus, taken in order, is Option1 a rhombus Option2 a rectangle Option3 a square Option4 any parallelogram

D and E are the mid-points of the sides AB and AC of Delta ABC and O is any point on side BC. O is joined to A. If P and Q are the mid-points of OB and OC respectively, then DEQP is Option1 a square Option2 a rectangle Option3 a rhombus Option4 a parallelogram