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The mass of an object a) Can be measured using a spring balance b) Remains constant c) is in the direction of gravitational force d) Varies at different locations

Option b) Remains constant. The mass of the object remains constant throughout the universe. The mass of the object refers to the amount of... View Article

Which one of the following carries extra nuclear genetic material? (A) Ribosomes (B) Golgi apparatus (C) Plastids/ Mitochondria (D) Chromosome

Option (C) Plastids/ Mitochondria. An extra nuclear inheritance also known as the cytoplasmic inheritance refers to the transmission of genes... View Article

Nasal chambers and buccal cavity are separated by (A) Palatine (B) Palate (C) Vulva (D) None of these

Option (B) Palate. The palate is the roof of the mouth in mammals including humans. Palate separates the oral cavity from the nasal cavity.... View Article

A stamen consists of two parts namely a) Anther and filament b) Filamentand style c) Anther and style d) Stigma and style

Option a) Anther and filament.... View Article

The rise of a liquid in a capillary tube is due to: a) Diffusion b) Surface Tension c) Atmospheric condition d) Osmosis

Option b) Surface Tension. The rise of a liquid in a capillary tube is due to surface tension or capillary action.... View Article

The geometry of a carbocation is a) linear b) planar c) tetrahedral d) octahedral

Option b) planar.... View Article

Changes in which one or more new substances are formed are called ____ changes. a) Physical b) Chemical c) Atmospheric d) None of these

Option b) Chemical.... View Article

There are three solids made up of aluminium, steel and wood, of the same shape and same volume. Which of them would have highest inertia? a) Steel b) Wood c) Aluminium d) None of these

Option a) Steel. As we know the mass is a measure of inertia. Among these three materials, steel has the greatest density and greatest mass hence... View Article

Sporangia and spore bearing leaf in fern is called as a) Sorus b) Sporophyll /frond c) Ramentum d) Indusium

Option b) Sporophyll /frond. A sporophyll is a leaf, that bears sporangia.... View Article

How many minutes are there in half of the non-leap year

1 day =24 hours1 hour =60 minutes1 day =24×60=1440 minutes1 year =365 days1 year =365×1440=5256001/2 year =525600/2=262800... View Article

Who first used the term enzyme a) Wilhelm Friedrich Kühne b) Thompson c) Garnier d) Sumner

Option a) Wilhelm Friedrich Kühne. In 1878, Wilhelm Friedrich Kühne coined the term enzymes.... View Article

Who initiated collaboration with Norman Borlaug which culminated in the green revolution in India? a) M.S. Swaminathan b) Ram Deo Misra c) Dr W. Dudgeon d) Dr Panchanan Maheshwari

Option a) M.S. Swaminathan.... View Article

The type of tissue present in the petioles of banana and canna is a) Chlorenchyma b) Aerenchyma c) Stellate parenchyma d) Prosenchyma

Option c) Stellate parenchyma. Stellate parenchyma are aerenchymatous tissues that are made up of parenchyma cells with large intercellular spaces.... View Article

What is the genotypic and phenotypic ratio of the monohybrid test cross? a) 2:1 b) 1:2 c) 1:1 d) 2:1:1

Option c) 1:1.... View Article

A liquid was mixed with ethanol and a drop of concentrated H2SO4 was added. A compound with a fruity smell was formed. The liquid was:

The liquid formed is CH3COOH (Acetic acid). The fruity smell is due to the formation of ester when acid and ethanol are treated in the presence... View Article

Lead poisoning in the body can be removed by a) Cis-platin b) Zeisse’s salt. c) DMG d) EDTA in the form of calcium dihydrogen salt

Option d) EDTA in the form of calcium dihydrogen salt. Lead poisoning in the body can be removed by EDTA in the form of calcium dihydrogen salt.... View Article

Which of the following is not a surfactant a) OHC−(CH2)14−CH2−COO−Na+ b) CH3−(CH2)15−N+(CH3)3Br− c) CH3−(CH2)16−CH2OSO2−Na+ d) CH3−(CH2)14−CH2NH2

Option d) CH3−(CH2)14−CH2NH2. Surfactants are amphiphilic molecules that have hydrophobic and hydrophilic parts. Surfactants are classified... View Article

Replace the word mentioned in the quotes: the painting “which” they were looking at was done by my sister. a) That b) Who c) What d) He/she

Option a) That.... View Article

The lac operon consists of which of the following a) Three regulatory genes and three structural genes b) Four regulatory genes only c) Two regulatory genes and two structural genes d) One regulatory gene and three structural genes

Option d) One regulatory gene and three structural genes.... View Article

Who discovered radioactivity

Radioactivity was discovered by Henri Becquerel. Radioactivity is a property exhibited by certain types of matter of emitting energy and... View Article

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