1. A phenomenon wherein a single gene has more than one phenotypic effect is known as
(A) Pleiotropism
(B) Epistasis
(C) Hypostasis
(D) Duplicate genes
(E) None of these

2. Which one of the following is a rich source of protein ?
(A) Scytonema
(B) Spirulina
(C) Spirogyra
(D) Stigonema
(E) None of these

3. Glycolysis is also known as
(A) Gluconeogencsis
(B) EMP Pathway
(C) Hcxose monophosphate shunt
(D) Photorespiration
(E) None of these

4.Rate of photosynthesis is higher in_light.
(A) White
(B) Red
(C) Green
(D) Blue
(E) None of these

5. The fruit ripening hormone is
(A) Abscisic acid
(B) Cytokinin
(C) Ethylene
(D) Gibberellin
(E) None of these

6. The largest herbarium in India located at
(A) New Delhi
(B) Dehradun
(C) Kolkata
(D) Pune
(E) None of these

7. International Rice Research Institute is in
(A) Hyderabad
(B) Cuttack
(C) Kenya
(D) Manila
(E) None of these

8. Obligate anaerobic bacteria can
(A) grow without oxygen and produce high energy
(B) grow without oxygen and produce low energy
(C) have a fermentative metabolism and a respiratory chain
(D) grow with or without oxygen and produce medium energy
(E) None of these

9. Which one of the following is the correct food chain ?
(A) Algae - insects - frog- peacock - snake
(B) Algae - frog - insects - snake-peacock
(C) Algae - frog - insects - peacock - snake
(D) Algae - insects - frog - snake-peacock
(E) None of these

10. DNA and RNA are similar to each other because both
(A) have similar sugars
(B) are nucleotide polymers
(C) have similar pyrimidines
(D) are double stranded
(E) None of these

11. A simple technique has been developed in India by using the following organisms as biofertilizers:
(A) Azotobacter and Rhizobium
(B) Azolla and Azotobacter
(C) Azolla and Rhizobium
(D) Azotobacter and Nostoc
(E) None of these

12. A sclerotium refers to a modified mycelium which is
(A) an underground structure
(B) a food storing organ
(C) a conidial type
(D) a hard resting body
(E) None of these

13. In paddy, the type of inflorescence is said to be
(A) Raceme (B) Panicle (C) Thyrsus (D) Cyathium (E) None of these

14. Botanical name of Pearl millet (Bajra) is
(A) Avena sativa
(B) Zea mays
(C) Eleusine coracana
(D) Pennisetum typhoides
(E) None of these

15. Which is the matching set in classification ?
(A) Neries, planaria, roundworm, earthworm
(B) Millipede, crab, centipede, cockroach
(C) Starfish, jellyfish, cuttlefish, octopus
(D) Sea-urchin, lobster, leech, locust
(E) None of these

16. The insects excrete in the form of uric acid because
(A) most of them are terrestrial
(B) the circulatory system is open
(C) the blood is colourless
(D) most of them are aquatic
(E) None of these

17. Measurement of the rate of oxygen consumption in unit volume of water over a period of time is carried
out to determine
(A) Fermentation
(B) Biogas generation
(C) Biosynthetic pathway
(D) Biological oxygen demand
(E) None of these

18. Biosphere is made up of
(A) organism
(B) organism and lithosphere
(C) organism, lithosphere and atmosphere
(D) organism, lithosphere, atmosphere and hydrosphere
(E) None of these


Answer Keys:

1. A

2. B

3. B

4. A

5. C

6. C

7. D

8. B

9. D

10. B

11. A

12. D

13. B

14. D

15. B

16. A

17. D

18. D