List of practice Questions

Three liquids of densities having the same value of surface tension $T$, rise to the same height in three identical capillaries. The angles of contact $\theta_{1}, \theta_{2}$ and $\theta_{3}$ obey-

The term 'polyadelphous' is related to -

The taq polymerase enzyme is obtained from

The suspension of slaked lime in water is known as

The standard petal of a papilionaceous corolla is also called

The highest DDT concentration in aquatic food chain shall occur in

The half-life of a radioactive substance is $30$ minutes. The time (in minutes) taken between $40\%$ decay and $85\%$ decay of the same radioactive substance is

The given circuit has two ideal diodes connected as shown in the figure below. The current flowing through the resistance \(R_1\) will be

Serum differs from blood in

Select the wrong statement -

Select the mismatch.

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

One mole of an ideal monatomic gas undergoes a process described by the equation $PV^{3}=$ constant. The heat capacity of the gas during this process 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 ?