Botany Multiple Choice Questions with Answers

Questions

61 Formation of diploid embryosac from diploid vegetative structure, e.g., nucellus or integument etc., without meiosis is called:

A Apospory

B Apomixis

C Diplospory

D Adventives polyembryony

View Answer

Answer: Apospory

62 Basal placentation is found in the family:

A Asteraceae

B Fabaceae

C Malvaceae

D Solanaceae

View Answer

Answer: Asteraceae

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63 In a pond ecosystem, benthos means:

A Primary consumes in the bottom of a pond

B Zooplanktons on water surface

C Large fishes eating small ones

D All phytoplankton’s

View Answer

Answer: Primary consumes in the bottom of a pond

64 Eyes on potato tubers represent:

A Nodes with buds

B Sutures

C Rootlets

D Scars

View Answer

Answer: Nodes with buds

65 Fungus without mycelium is:

A Saccharomyces

B Rhizopus

C Puccinia

D Mucor

View Answer

Answer: Saccharomyces

66 The pigment involved in photo morphogenetic movements is:

A Phytochrome

B Vernalin

C Cytochrome

D Chromatin

View Answer

Answer: Phytochrome

67 Tyloses are:

A Sieve plates

B Tracheal plugs plugging the lumen of vessels and tracheids

C Lactiferous channels

D Secretory cells

View Answer

Answer: Tracheal plugs plugging the lumen of vessels and tracheids

68 Ribozyme is:

A RNA with enzymatic activity

B enzyme

C Hormone

D Protein

View Answer

Answer: RNA with enzymatic activity

69 In Bignonia eapreolata pollination is carried out by:

A Wind

B Bird

C Insect

D Bat

View Answer

Answer: Bat

70 Genetic engineering is related with:

A Eugenics

B Euthenics

C Euphenics

D All of these

View Answer

Answer: Euphenics

71 Floating roots are the characteristics feature of:

A Jussiaea

B Cuscuta

C Viscum

D Vanda

View Answer

Answer: Jussiaea

72 Which one of the following is the earliest land plant?

A Synchytrium

B Cycas

C Ulothrix

D Rhynia

View Answer

Answer: Rhynia

73 The hormone responsible for ripening of fruits is

A Ethylene

B Cytokinin

C Auxin

D ABA

View Answer

Answer: Ethylene

74 Coir is the commercial product of coconuts:

A Endosperm

B Pericarp

C Endocarp

D Mesocarp

View Answer

Answer: Mesocarp

75 Polygenic genes show:

A Similar genotype

B Different genotype

C Similar phenotype

D Different phenotype

View Answer

Answer: Different phenotype

76 Select the correct statement:

A Legumes are incapable of fixing nitrogen

B Legumes fix nitrogen through bacteria living in fruits root

C Legumes fix nitrogen only by bacteria present in nodules

D None of the above

View Answer

Answer: Legumes fix nitrogen only by bacteria present in nodules

77 Azotobacter and Beijerinckia are the examples of

A Symbiotic nitrogen-fixers

B Non-symbiotic nitrogen-fixers

C Ammonifying bacteria

D Disease causing bacteria

View Answer

Answer: Non-symbiotic nitrogen-fixers

78 Smilax a climbing genus belongs to

A Cucurbitaceae

B Solanaceae

C Liliaceae

D Cruciferae

View Answer

Answer: Liliaceae

79 The scutellum of the gram embryo is a:

A Vestigial organ

B Photosynthetic organ

C Absorptive organ

D Protective organ

View Answer

Answer: Vestigial organ

80 In certain parts of India, muscular dystrophy is commonly found amongst the poor people because they eat cheap pulse from the plant

A Pisum satiuvm

B Lathyrus sativus

C Cicer arietmum

D Phaseolus mungo

View Answer

Answer: Lathyrus sativus

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