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Select One Of The Following Important Features Distinguishing Gnetum From Cycas And Pinus And Showing Affinities With Angiosperms?

a) Perianth and two integuments b) Presence of vessel elements and absence of archegonia c) Absence of resin duct and leaf venation d)... View Article

The Kind Of Tissue That Forms The Supportive Structure In Our Pinna (External Ears) Is Also Found In?

a) vertebrae b) tip of the nose c) ear ossicles d) nails Answer: b) tip of the nose... View Article

Which One Of The Following Correctly Describes The Location Of Some Body Parts In The Earthworm Pheretima?

a) two pairs of accessory glands in 16-18 segments b) two pairs of testes in 10th and11th segments c) one pair of ovaries attached at... View Article

Point Mutation Involves?

a) insertion b) deletion c) duplication d) change in single base pair Answer: d) change in single base pair... View Article

Reduction In Vascular Tissues, Mechanical Tissue And Cuticle Is Characteristic Of?

a) Xerophytes b) Hydrophytes c) Epiphytes d) Mesophytes Answer: b) Hydrophytes... View Article

An Example Of A Seed With Endosperm, Perisperm And Caruncle Is?

a) cotton b) castor c) lilly d) coffee Answer: b) castor... View Article

The Bacterium Bacillus Thuringiensis Is Widely Used In Contemporary Biology As?

a) indicator of water pollution b) source of industrial enzyme c) agent of production of dairy products d) insecticide Answer: d) insecticide... View Article

Which One Of The Following Acids Is A Derivative Of Carotenoids?

a) Indole Butyric acid b) Abscisic acid c) Gibberellic acid d) Indole-3-acetic-acid Answer: b) Abscisic acid... View Article

Which One Of The Following Types Of Organisms Occupy More Than One Trophic Level In A Pond Ecosystem?

a) Phytoplankton b) Frog c) Zooplankton d) Fish Answer: d) Fish... View Article

Whose Experiments Cracked The DNA And Discovered Unequivocally That A Genetic Code Is A “Triplet”?

a) Nirenberg and Mathaei b) Beadle and Tatum c) Morgan and Sturtevant d) Hershey and Chase Answer: a) Nirenberg and Matthaei... View Article

Which Of The Following Is A Symbiotic Nitrogen Fixer?

a) Glomus b) Azolla c) Frankia d) Azotobacter Answer: c) Frankia... View Article

Elbow Joint Is An Example Of?

a) pivot joint b) ball and socket joint c) gliding joint d) hinge joint Answer: d) hinge joint... View Article

Middle Lamella Is Composed Mainly Of?

a) calcium pectate b) Muramic acid c) Hemicellulose d) Phosphoglycerides Answer: a) calcium pectate... View Article

A Change In The Amount Of Yolk And Its Distribution In The Egg Will Affect?

a) formation of zygote b) fertilization c) number of blastomeres produced d) pattern of cleavage Answer: d) pattern of cleavage... View Article

Which One Of The Following Pairs Of Food Components In Humans Reaches The Stomach Totally Undigested?

a) protein and starch b) starch and cellulose c) fat and cellulose d) starch and fat Answer: c) fat and cellulose... View Article

Transgenic Plants Are The Ones?

a) produced by a somatic embryo in artificial medium b) grown in artificial medium after hybridization in the field c) produced after... View Article

In The Case Of Peppered Moth (Biston Betularia) The Black-coloured Form Became Dominant Over The Light-coloured Form In England During The Industrial Revolution. This Is An Example Of?

a) natural selection whereby the darker forms were selected b) inheritance of darker colour character acquired due to the darker environment... View Article

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