With reference to factors affecting the rate of photosynthesis, which of the following state- ments is not correct? Option 1 : Increasing atmospheric CO2 concentration up to 0.05 per cent can enhance CO2 fixation rate.Option 2 : C3 plants respond to higher temperatures with enhanced photosynthesis while C4 plants have much lower temperature optimum.Option 3 […]
Plants which produce characteristic pneumatophores and show vivipary belong to Option 1 : MesophytesOption 2 : PsammophytesOption 3 : HalophytesOption 4 : Hydrophytes
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A disease caused by an autosomal primary non-disjunction is Option 1 : Klinefelter’s syndromeOption 2 : Down’s syndromeOption 3 : Turner’s syndromeOption 4 : Sickle cell Anaemia
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A gene whose expression helps to identify transformed cell is known as Option 1 : VectorOption 2 : PlasmidOption 3 : Selectable markerOption 4 : Structural gene
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Which of the following statements is correct, with reference to enzymes? Option 1 : Apoenzyme = Holoenzyme + CoenzymeOption 2 : Coenzyme = Apoenzyme + HoloenzymeOption 3 : Holoenzyme = Apoenzyme + CoenzymeOption 4 : Holoenzyme = Apoenzyme + Co-factor
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An example of colonial alga is Option 1 : VolvoxOption 2 : UlothrixOption 3 : SpirogyraOption 4 : Chlorella
Zygotic meiosis is a characteristic of Option 1 : FucusOption 2 : ChlamydomonasOption 3 : FunariaOption 4 : Marchantia
Identify the wrong statement in context of heartwood? Option 1 : It conducts water and minerals efficiently.Option 2 : It is highly durable.Option 3 : Organic compounds are deposited in it.Option 4 : It comprises of dead elements with highly lignified walls.
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Which of the following is made up of dead cells? Option 1 : PhellemOption 2 : CollenchymaOption 3 : PhloemOption 4 : Xylem parenchyma
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What is the criterion for DNA fragments movement on agarose gel during gel electrophoresis? Option 1 : Positively charged fragments move to farther end.Option 2 : Negatively charged fragments do not move.Option 3 : The smaller the fragment size, the farther it moves.Option 4 : The larger the fragment size, the farther it moves.
