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Online Tests
NAT-IIB Biological Science Botany Hard Test MCQs With Answers
Question # 1
Plants of Euphorbiaceae contain the vitamin
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A
B
C
D
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Question # 2
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 # 3
Members of compositeae are
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Topical
Sub-tropical
Temperate
Cosmopolitan
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Question # 4
If an author cited two or more specimens as types, the remaining cited species are
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Lectotype
Syntype
Paratype
Neotype
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Question # 5
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 # 6
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 # 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
Aggregates of closely related species
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Infra specific species
Variety
Subspecies
Genus
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Question # 9
The phenomenon of interference / hide the effect of one gene present at one locus by the other gene present at other locus is called
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Epistasis
Crossing over
Gene linkage
Synapsis
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Question # 10
Major types of ecosystems, those that occupy board geographical regions are called
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Climax community
Biome
Planetary ecosystem
Community
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Question # 11
In an ecosystem Green photosynthetic plants, which capture and bring light energy into ecosystem are termed as
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Consumers
Decomposers
Producers
Parasites
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Question # 12
Natural system of classification is based on characters
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Reproductive and anatomical
Morphological and anatomical
Morphological and reproductive
Vegetative and reproductive
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Question # 13
It is a duplicate specimen of holotype collected as same place and time
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Holotype
Isotype
Lectotype
Syntype
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Question # 14
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 # 15
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 # 16
Largest family of angiosperm
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Crucifereae
Compositeae
Ranunculaceae
Cucurbitaceae
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Question # 17
Latex produced by Cryptostegia grandiflora is a source of
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Fodder
Rubber
Fiber
Stuffing material
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Question # 18
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 # 19
Fruit of labiateae consists of four ------------- nutlets.
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One seeded
Two seeded
Three seeded
Four seeded
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Question # 20
Which one of the following is a biotic component?
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Atmosphere
Water
Fungi
Soil
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Question # 21
The body of fungus is called as
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Mycelium
Hyphae
Septate hyphae
Coenocytic
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