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NAT II Biological Science Botany MCQs With Answers
Question # 1
It includes the plants in which perianth is absent or reduced
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Apocarpae
Nudiflorae
Heteromarae
Glumacae
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Question # 2
Bark of Quillajasaponariais used in perparing
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Fiber
Dye
Paper
Shampoos
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Question # 3
Which statement is not true about the family Euphorbiaceae
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They are found in arctic regions
They are mainly herbs and shrubs
They are a source of timber
Their seed is endospermic
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Question # 4
Study of relationship of animals to their environment is termed as
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Ecology
Eco
System
Biotic components
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Question # 5
The species which is at the threat of danger of extinction is called
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Endangered species
Extinct species
Threatened species
All of these
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Question # 6
Saccharomyces cervisiae is the most commonly exploited yeast which feature highlights their economic improtance
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Asexual reproduction
Unicellular
They ferment carbohydrate to ethanol and carbon dioxide
Sexual reproduction
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Question # 7
The criteria of the classification are the ------------ on which the classification is based.
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Groups
Divisions
Characters
Orders
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Question # 8
Vegetative parts of ----------- are easier to observe than reproductive parts
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Angiosperms
Gymnosperms
Bryphytes
Pteridophytes
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Question # 9
The appendages of anthers form a corona
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Tanslator
Cuculli
Staminal
Pollinium
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Question # 10
A special protein that generates voltage across a membrane is called;
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Electrochemical protein
Electromagnetic Protein
Electrogenic protein
Proteogenic protein
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Question # 11
An ecosystem is forged from bare rock, sand or clear glacial pool where there is no trace of previous life it refers to
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Secondary succession
Hydrosere
Xerosere
primary succession
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Question # 12
Fruits of leguminoceae is
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Legume
Lomentum
Drupe
Both a & b
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Question # 13
Cohesion theory of ascent of sap is proposed by
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Zimmernmann
John jolly
Dixon
Both a & b
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Question # 14
Raphanussativusis the botanical name of
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Radish
Cabbage
Wall fruit
Wall cress
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Question # 15
The collection of stomatal pores guard cells and subsidiary cells is called;
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Stomatal Apparatus
Guard cells complex
None
Both a & b
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Question # 16
-----------harmone increase tendency of plants to produce a male flower
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Auxins
Gibberllins
Ethylene
Abcissic acid
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Question # 17
When a species is described in one genus and later transferred to another genus, the specific epithet
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Homonym
Synonym
Legitimate
Illegitimate
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Question # 18
Which true about pattern baldness except
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It is x-linked disease
It is sex influenced trait
It is autosomal recessive trait in females
It is autosomal dominant trait in male
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Question # 19
Disc florets have ------------ flowers
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Tubular
Ligulate
Round
None
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Question # 20
When there is a net movement of water molecules occurs towards an imbibant, the type of diffusion is
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Potential diffusion
Active diffusion
Passive diffusion
Imbibation
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