46
White rust of crucifers is caused by
1
Puccinia
2
Ustilago
3
cystocarp
4
Peziza
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47
Clamp connection is common in
1
Ascomycetes
2
Basidiomycetes
3
Phycomycetes
4
Deuteromycetes
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48
The term 'mycorrhiza' was coined by
1
Frank
2
Beijerinck
3
Campbell
4
Ivanovsky
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49
In lichen, the type of symbiotic process is known as
1
heliotism
2
symbiotism
3
halotrophy
4
heliotrophy
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50
Which of the following is used in baking of bread?
1
Rhizopus stolonifer
2
Saccharomyces cerevisiae
3
Claviceps
4
Penicillium notatum
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Answer: Saccharomyces cerevisiae
51
Covered smut of barley is caused by
1
Ustilago nuda
2
Ustilago tritici
3
Ustilago hordei
4
Ustilago graminis
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52
Green mould is common name for
1
Neurospora
2
Mucor
3
Penicillium
4
Saccharomyces
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53
The most economically important bryophyte among the following is
1
Funaria
2
Marchantia
3
Riccia
4
Sphagnum
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54
Gemma cups are found in
1
Sphagnum
2
Marchantia
3
Riccia
4
Anthoceros
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55
Pseudoelaters are found in the sporophyte of
1
Marchantia
2
Pellia
3
Polytrichum
4
Anthoceros
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56
Rhizoids of Sphagnum are
1
unicellular
2
green-coloured
3
unicellular with septa
4
multicellular with oblique septa
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Answer: multicellular with oblique septa
57
The common element in the xylem of pteridophyte is
1
trachea
2
tracheid
3
xylem parenchyma
4
xylem fibre
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58
Protocorm is found in
1
Lycopodium
2
Selaginella
3
Equisetum
4
Marsilea
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59
The stele in the rhizome of Marsilea is
1
pro to stele
2
haplostele
3
dictyostele
4
amphiphloic siphonostele
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Answer: amphiphloic siphonostele
60
Formation of sporophyte from a vegetative portion of prothallus is called
1
apocarpy
2
apogamy
3
apomixis
4
apospoiy
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