Md Jibrail 685

A: Mendel used true bleeding pure lines for his experiments R: a true breeding line is one that has undergone continuous self pollination

A: chloroplast usually align themselves along the walls of mesophyll cells R: they get optimum quantity of incident light by aligning along well

A: herbarium is a storehouse of collected plant specimens that are dried pressed and preserved on sheets R: herbaria serve as quick referral system in taxonomic studies

A: if the earth stops rotating about its exist the value of the weight of the body at equator will decrease R: the centripetal force does not act on the body at the equator

A: when a particular restriction enzyme cuts the DNA overhanging stretches or sticky ends of DNA forms R: some restriction enzymes cut the strands slightly away from the centre of palindromic sequence

A: angular speed of a planet around the sun increases when it is closer to the sun R: total angular momentum of the system remains constant

A:The ratio of Cp/Cv for a monoatomic gas is more than for a diatomic gas R:Cp/Cv for a gas is equal to 2/f where f is degree of freedom

A: NH4+ ion act as bronsted lowry acid but not as Lewis acid R:NH4+ ion can not accept lone pair but donate proton

A: Amniocentesis for the sex determination is one of the method for the RCH programme R: Ban on amniocentesis checks increasing menace of female foeticide

A: benzene is more stable than hypothetical cyclohexatriene R: the delocalized π electron cloud is attracted more strongly by nuclei of carbon atoms

A: kinetic energy of a system can be increased without applying external force on the system R: if external forces are absent then work done by internal forces is equal to change in kinetic energy

A: mass is a property of one object alone where as weight results from the interaction of two objects R: if the weight is measured from a non inertial frame the measurement gives an apparent weight instead of the actual weight

A: kidney maintains the osmotic concentration of the blood R: kidney eliminates either hypotonic or hypertonic urine according to the need of the body

A: during ventricular systole the tricuspid and bicuspid valves closes R: the increase in atrial pressure during the contraction of ventricles causes the valves to close

A: entropy change in reversible adiabatic expansion of an ideal gas is zero R: the increase in entropy due to volume increase just compensate the decrease in entropy due to fall in temperature