1. Species that occur in different geographical regions are called as :
A) Allopatric
B) Sympatric
C) Nupatric
D) None of these
2. The ploidy level of bread wheat (Triticum aestivum) is :
A) Hexaploid
B) Diploid
C) Tetraploid
D) Euploid
3. Father of Genetics ‘Gregor Mendel’ conducted his experiments on :
A) Sweet pea
B) Bean
C) Field pea
D) Garden pea
4. The cropping intensity of India in 2004–05 is about :
A) 130%
B) 136%
C) 140%
D) 150%
5. Number of ATPs gained in glycolysis are :
A) 2
B) 4
C) 6
D) 8
6. 1 gm of glucose yields how much fat or oil :
A) 0.10 g
B) 0.20 g
C) 0.35 g
D) 0.45 g
7. Opaque-2 is a high protein gene present in the crop :
A) Rice
B) Wheat
C) Maize
D) Bajra
8. Growth of plant towards light is called :
A) Phototropism
B) Photosynthesis
C) Photolysis
D) Photoperiodism
9. The plants that open their stomata at night for taking CO₂ are called :
A) C3 plants
B) C4 plants
C) CAM plants
D) Xerophytic
10. Principle of Experimental Design was given by :
A) R. A. Fisher
B) Karl Marx
C) Karl Pearson
D) Louis Pasteur
11. An acid derived from the green leaves of chickpea which treats intestinal disorders is :
A) Citric acid
B) Acetic acid
C) Oxalic acid
D) Malic acid
12. Maize is an example of :
A) C3 plants
B) C4 plants
C) CAM plants
D) Xerophytic
13. Atmosphere is measured above the mean sea level to a height of about :
A) 160 m
B) 1600 m
C) 1600 km
D) 16 km
14. Plants absorb phosphorus in the form of :
A) H₂PO₄⁻
B) PO₄³⁻
C) P₂PO₄
D) P₂O₅
15. Criteria of essentiality of nutrients was proposed by :
A) Arnon & Stout
B) Von Liebig
C) R. A. Fisher
D) Stephen Hales
16. Oleoresin compound is found in :
A) Cotton
B) Ginger
C) Maize
D) Chilli
17. Plants that are capable of growing in rock crevices are :
A) Halophytes
B) Xerophytes
C) Lithophytes
D) Calciphytes
18. Plant cells are connected with the help of :
A) Plasmodesmata
B) Plasmodesma
C) Cell wall
D) Cell membrane
19. Nullisomic condition is :
A) 2n + 2
B) 2n − 2
C) 2n + 1
D) 2n − 1
20. End product of glycolysis is :
A) RuBP
B) PEP
C) PGA
D) Pyruvic acid
21. The macrospores in soil generally constitute :
A) Soil air
B) Soil water
C) Soil pH
D) Soil colour
22. C : N ratio of humus is :
A) 10 : 1
B) 2 : 1
C) 5 : 1
D) 3 : 1
23. The first strata of atmosphere is :
A) Troposphere
B) Stratosphere
C) Mesosphere
D) Thermosphere
24. Test is applicable when the number of treatments are :
A) 1
B) 2
C) 3
D) 5
25. Lal Bagh in Bangalore was established by :
A) Ranjit Singh
B) King Hyder Ali
C) Lord William
D) King Suryamal
26. In India, the famous scientist concerned with germplasm collection is :
A) Dr. B. P. Pal
B) Dr. H. B. Singh
C) Dr. Gurdev Singh
D) Dr. M. S. Swaminathan
27. The average height of plant is measured by :
A) Mode
B) Median
C) Mean
D) Variance
28. Deficiency of which element causes red and purple coloured patches in Zea mays :
A) Ca
B) Mn
C) Mg
D) P
29. Total geographical area of India is :
A) 248 Mha
B) 328 Mha
C) 328.8 Mha
D) 428 Mha
30. The most common method of irrigation in India is :
A) Drip irrigation
B) Ridge and furrow irrigation
C) Check basin irrigation
D) Sprinkler irrigation
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