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The morphological nature of the edible part of coconut is

1) Perisperm 2) Cotyledon 3) Endosperm 4) Pericarp Answer:3) Endosperm Explanation: The edible part of the coconut is the endosperm. It has... View Article

Which of the following are found in extreme saline conditions?

1) Archaebacteria 2) Eubacteria 3) Cyanobacteria 4) Mycobacteria Answer: 1) Archaebacteria Explanation: Archaebacteria are found in... View Article

Which of the following statements is correct regarding the loop of Henle?

1) The ascending limb of loop of Henle is impermeable to water 2) The descending limb of loop of Henle is impermeable to water 3) The ascending... View Article

Which of the following facilitates opening of stomatal aperture?

1) Contraction of outer wall of guard cells 2) Decrease in turgidity of guard cells 3) Radial orientation of cellulose microfibrils in the cell... View Article

An important characteristic that Hemichordates share with Chordates is

1) Absence of notochord 2) Ventral tubular nerve cord 3) Pharynx with gill slits 4) Pharynx without gill slits Answer: 3) Pharynx with gill... View Article

In Bougainvillea thorns are the modifications of

1) Stipules 2) Adventitious root 3) Stem 4) Leaf Answer: 3) Stem Explanation: Thorns are the modification of axillary buds of stems.... View Article

A decrease in blood pressure/volume will not cause the release of

1) Renin 2) Atrial Natriuretic Factor 3) Aldosterone 4) ADH Answer: 2) Atrial Natriuretic Factor Explanation: Atrial natriuretic factor or... View Article

A gene whose expression helps to identify transformed cell is known as

1) Selectable marker 2) Vector 3) Plasmid 4) Structural gene Answer: 1) Selectable marker Explanation: Selectable marker helps in... View Article

Which of the following are not polymeric?

1) Nucleic acids 2) Proteins 3) Polysaccharides 4) Lipids Answer: 4) Lipids Explanation: Lipids are not polymers, they are normally esters... View Article

Viroids differ from viruses in having

1) DNA molecules with protein coat 2) DNA molecules without protein coat 3) RNA molecules with protein coat 4) RNA molecules without protein... View Article

In case of poriferans the spongocoel is lined with flagellated cells called

1) Ostia 2) Oscula 3) Choanocytes 4) Mesenchymal cells Answer:3) Choanocytes Explanation: In poriferans or sponges, the spongocoel and... View Article

Which one of the following statements is not valid for aerosols?

1) They are harmful to human health 2) They alter rainfall and monsoon patterns 3) They cause increased agricultural productivity 4) They have... View Article

Phosphoenolpyruvate (PEP) is the primary CO2 acceptor in

1) C3 plants 2) C4 plants 3) C2 plants 4) C3 and C4 plants Answer: 2) C4 plants Explanation: PEP is the 3C compound and acts as the primary... View Article

Which one of the following is related to Ex-situ conservation of threatened animals and plants?

1) Wildlife Safari parks 2) Biodiversity hotspots 3) Amazon rainforest 4) Himalayan region Answer:1) Wildlife Safari parks Explanation:... View Article

Which of the following in sewage treatment removes suspended solids?

1) Tertiary treatment 2) Secondary treatment 3) Primary treatment 4) Sludge treatment Answer:3) Primary treatment Explanation: Suspended... View Article

Which of the following flowers only once in its life-time?

(1) Mango (2) Jackfruit (3) Bamboo species (4) Papaya Answer: (3) Further Reading: List of 25 Important Topics in Biology for... View Article

Select the correct statement NEET 2018 CODE AA

(1) Spliceosomes take part in translation (2) Punnett square was developed by a British scientist (3) Franklin Stahl coined the term... View Article

Which of the following pairs is wrongly matched? NEET 2018 CODE AA

(1) XO type sex : Grasshopper determination (2) ABO blood grouping : Codominance (3) Starch synthesis in pea : Multiple alleles (4) T.H. Morgan :... View Article

The correct order of steps in Polymerase Chain Reaction (PCR) is

(1) Denaturation, Extension, Annealing (2) Annealing, Extension, Denaturation (3) Extension, Denaturation, Annealing (4) Denaturation, Annealing,... View Article

In India, the organisation responsible for assessing the safety of introducing genetically modified organisms for public use is

(1) Research Committee on Genetic Manipulation (RCGM) (2) Council for Scientific and Industrial Research (CSIR) (3) Indian Council of Medical... View Article

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