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NAT II Biological Science Botany MCQs With Answers
Question # 1
Family ------------ incluldes 100 genera and 850 species
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Compositeae
Crucifereae
Labiateae
Cucurbitaceae
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Question # 2
Which of the following describes the process of natural selection?
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Change from simple to more complex organisms
Differential reproductive success between genotypes
Increase in size of population
Occurrence of new mutations
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Question # 3
Fruits of Emblicaofficinalis are used for making
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Oil
Perfume
Hair dye
All of these
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Question # 4
Botanists were agreed that scientific names should be in
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English
Latin
Greek
Spanish
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Question # 5
Two species with the same specific epithet cannot occur in the genus. If this happens, the earlier valid name will retain and the latter will become it
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Homonym
Synonym
Legitimate
Illegitimate
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Question # 6
A sex limited trait is limited to only one sex due to
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Taxonomic differences
Ecological differences
Physiological
Anatomical difference
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Question # 7
The disease in which leaves may appear twisted and finally die is
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Bronzing
Whiptail disease
Whiplash disease
None
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Question # 8
Leaves of ---------- are used for the treatment of asthma
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Datura
Lyecium
Atropa
Solanum
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Question # 9
It is a specimen chosen by later worked from original material studied by the author of the species
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Holotype
Syntype
Isotype
Lecto type
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Question # 10
What are the important features that fungi have which help them in their survival on land?
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Tolerate wide range of pH
Tolerate temperature
Tolerate high osmotic pressure
All of the above
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Question # 11
Apple is a member of family
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Rasaceae
Ranunculaceae
Labiaceae
Malvaceae
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Question # 12
When all the original specimens and their duplicates have been lost or destroyed
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Lecto type
Neotype
Isotype
Paratype
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Question # 13
Largest family of angiosperm
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Crucifereae
Compositeae
Ranunculaceae
Cucurbitaceae
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Question # 14
When the leaves fails to produce normal amounts of chlorophyll, the disease is
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Apoptosis
Chlorosis
Chlorination
Necrosis
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Question # 15
Vegetative parts of --------- are easier to observe than reproductive parts
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Angiosperms
Gymnosperms
Bryophytes
Pteridophytes
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Question # 16
Many fungi are the sources of drugs, which drug is used to lower the blood cholesterol level
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Griseofulvin
Cyclosporine
Lovastatin
Ergotin
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Question # 17
The present international code of botanical nomenclature consists of ---------- rules.
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Phylogenetic system
Nomenclature type
Specific name
Common names
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Question # 18
Following statement is in accordance to Darwinisw
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Natural Selection
Over Production
Survival of fittest
All of these
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Question # 19
As a result of the union of anther and pistil this structure is formed
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Polonium
Gynoestigium
Corpusculum
Translator
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Question # 20
-----------harmone increase tendency of plants to produce a male flower
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Auxins
Gibberllins
Ethylene
Abcissic acid
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Question # 21
The group of enzymes that bring about non-hydrolytic addition or removal of substrate are
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Hydrolase
Protease
Heptase
Dehydrogenase
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Question # 22
A symbiotic association between certain fungi and certain photoautotrophes either green algae or a cyanobacterium or sometimes both is termed as
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Mycorrhizae
Lichens
Endomycorrhizae
Ectomycorrhizae
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Question # 23
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 # 24
Euphorbia Milli is a
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Tree
Herb
Ornamental shrub
Ornamental herb
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