Questions

Nitrifying bacteria:

Nitrifying bacteria: Options (a) Oxidize ammonia to nitrates (b) convert free nitrogen to nitrogen compounds (c) convert proteins into ammonia…

Guard cells help in:

Guard cells help in: Options (a) transpiration (b) guttation (c) fighting against infection (d) protection against grazing Correct Answer: transpirationExplanation:Guard…

T.O. Diener discovered

T.O. Diener discovered a: Options (a) free infectious DNA (b) infectious protein (c) bacteriophage (d) free infectious RNA Correct Answer:…

Synapsis occurs between

Synapsis occurs between: Options (a) mRNA and ribosomes (b) spindle fibres and centromere (c) two homologous chromosomes (d) a male…

Meiosis takes place in:

Meiosis takes place in: Options (a) Conidia (b) Gemmule (c) Megaspore (d) Meiocyte Correct Answer: MeiocyteExplanation:Meiosis takes place in meiocyte…

Point mutation involves:

Point mutation involves: Options (a) change in single base pair (b) duplication (c) deletion (d) insertion Correct Answer: change in…

Phyllode is present in :

Phyllode is present in : Options (a) Asparagus (b) Euphorbia (c) Australian Acacia (d) Opuntia Correct Answer: Australian AcaciaExplanation:Phyllode is…

manganese is required in:

manganese is required in: Options (a) Plant cell wall formation (b) photolysis of water during photosynthesis (c) chlorophyll synthesis (d)…

Somaclones are obtained by

Somaclones are obtained by Options (a) plant breeding (b) irradiation (c) genetic engineering (d) tissue culture Correct Answer: tissue culture…

Lenticels are involved in :

Lenticels are involved in : Options (a) Gaseous exchange (b) Food transport (c) Photosynthesis (d) Transpiration Correct Answer: Gaseous exchangeExplanation:Lenticels…