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Important Questions & Answers on Botany Optional Paper for APSC(Assam Public Service Commission) Prelims | GkSeries

1 Which of the following does not develop from tap root system?
1 Napiform root
2 Conical root
3 Fusiform root
4 Moniliform root

Answer: Moniliform root
2 Cladodes are produced by
1 Opuntia
2 Asparagus
3 Cocoloba
4 Euphorbia

Answer: Asparagus
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3 The adventitious root system is usually
1 surface feeder
2 subsurface feeder
3 deep feeder
4 very deep feeder

Answer: surface feeder
4 The rootless plant is
1 Utricularia
2 Viscum
3 Drosera
4 Nepenthes

Answer: Utricularia
5 Diadelphous stamens are characteristic of
1 Malvaceae
2 Poaceae
3 Fabaceae
4 Brassicaceae

Answer: Fabaceae
6 Caudex type of stem is present in
1 coconut
2 cocoa
3 neem
4 bamboo

Answer: coconut
7 Mantha prouduces
1 runner
2 sucker
3 stolon
4 offset

Answer: sucker
8 Hydrophily occurs in
1 Vallisneria
2 Poinsettia
3 Bombax
4 Salvia

Answer: Vallisneria
9 Thorns are
1 modified stem structures
2 modified leaf parts
3 superficial outgrowths of stem
4 hard and stiff plant parts

Answer: modified stem structures
10 In dichogamy
1 anthers are sterile whereas ovules are fertile
2 ovules are sterile whereas anthers are fertile
3 pollen and stigma of the flower mature at different times
4 pollen and stigma of the flower mature at the same time

Answer: pollen and stigma of the flower mature at different times
11 Endosperm of angiosperms results after fertilization from V
1 synergids
2 secondary nucleus
3 antipodal cells
4 egg

Answer: secondary nucleus
12 The mode of arrangement of leaves on the stem and its branches is called
1 phyllode
2 phyllotaxy
3 cladode
4 phylloclade

Answer: phyllotaxy
13 Verticillaster inflorescence is found in
1 Amaranthus
2 Achyranthus
3 Acalypha
4 sacred basil

Answer: sacred basil
14 The rose is
1 hypogynous
2 perigynous
3 epigynous
4 half-perigynous

Answer: perigynous
15 Seeds in a mature ovary arc developed from
1 embryo
2 embryo sac
3 ovule
4 endosperm

Answer: ovule
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