List of practice Questions

Seed formation without fertilization in following plants involves the process of

Reduction in pH of blood will -

Red List contains data or information on

Oxidative phosphorylation is

Natural rubber has :

$MY$ and $NY_3$, two nearly insoluble salts, have the same $K_{SP}$ values of $6.2 \times 10^{-13}$ at room temperature. Which statement would be true in regard to $MY$ and $NY_3$ ?

Mitochondria and chloroplast are- (a) semi-autonomous organelles (b) formed by division of pre existing organelles and they contain DNA but lack protein synthesising machinery Which one of the following options is correct?

Microtubules are the constituents of

Which of the following is a restriction endonuclease ?

Which of the following is not a feature of the plasmids ?

Which of the following restriction enzymes produces blunt ends ?

Which of the following statement about hydrogen is incorrect ?

Which one of the following is the starter codon ?

Which part of the tobacco plant is infected by Meloidogyne incognita ?

Which of the following biphenyls is optically active ?

Which kind of therapy was given in 1990 to a four-year-old girl with adenosine deaminase [ADA] deficiency ?

Which among the given molecules can exhibit tautomerism?

Lithium has a $bcc$ structure. Its density is $530 \, kg \, m^{-3}$ and its atomic mass is $6.94 \, g \, mol^{-1}$. Calculate the edge length of a unit cell of Lithium metal. ($NA = 6.02 \times 10^{23} \, mol^{-1}$)

In which of the following molecules, all atoms are coplanar ?

In male cockroaches, sperms are stored in which part of the reproductive system ?

In calcium fluoride, having the fluorite structure, the coordination numbers for calcium ion $(Ca^{2+})$ and fluoride ion $(F^-)$ are

Depletion of which gas in the atmosphere can lead to an increased incidence of skin cancers

Which of the following statements is not correct?

Which of the following statement about hydrogen is incorrect ?