16. Postzygotic isolating mechanism includes?
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Gametic mortality
Zygotic mortality
Hybrid sterility
All of these

17. Variation the source of?
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Evolution
Development
Consistency
All

18. Triploidy is denoted by?
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3n
4n
2n-1
None of these

19. Skin color in human is example of?
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Continuous Variation
Discontinuous variations
Both a and b
None of above

20. Inflorescence of family Asteraceae is?
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Verticillaster
Cyathium
Catkin
Capitulum

21. Scientific name of black mustard?
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Brassica Nigra
Brassica olerecae
Brassica bursa
Iberis amara

22. Roots of Asteracea family are?
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Fibrous root
Tap root
Root tubers
Epiphytic roots

23. Sessile are called so for having no?
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Pinna
Leaf blade
Midrib
Pedicel

24. All the cereals and millets belongs to family?
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Solanaceae
Rosaceae
Poaceae
None of above

25. Leaves of …… are used as blood purifier?
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A.catechu
A.sengal
A.nilotica
Albizzia

26. DR Amir liqat Ali was a member of?
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NA Assembly
Provincial assembly
Senate
None of these

27. Printer is ______________device?
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Input
Output
Both A and B
None of above

28. Find two number whose sum is 28 and the difference is 4 _??
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12,16
18,10
15,13
14,12

29. 85% of a number is added to 24, the result is the same number. Find the number??
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150
140
130
160

30. The number of SAARC Countries is?
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5
6
7
8