Explanation

Bacteriophages are significantly smaller than the bacteria they infect, meaning the volume of a phage is roughly 1/1000 of the host cell's volume. 

Explanation

Proteases are enzymes that break down proteins by hydrolyzing peptide bonds.

Enzymes that catalyze hydrolysis reactions belong to the class of Hydrolases.

Explanation

Mean of a binomial distribution is given by:

  Mean = n × p

So, Mean = 4 × 0.5 = 2

Explanation

Across the periods of the periodic table, the shielding effect remains relatively constant.

This is because the number of inner shell electrons, which are responsible for shielding, does not change as you move across a period. 

Explanation

Taq polymerase is an enzyme obtained from the thermophilic bacterium Thermus aquaticus.

It is heat-stable and essential for PCR, where it replicates DNA at high temperatures.

Explanation

A die has 6 numbers: 1, 2, 3, 4, 5, 6

Even numbers greater than 2: 4 and 6 → 2 outcomes

Total possible outcomes: 6

Probability = 2/6 = 1/3

Explanation

Mica is a dielectric material that increases the capacitance when placed between capacitor plates.

It does so by reducing the electric field and allowing the capacitor to store more charge for a given voltage.

Explanation

Deft means کچھ کرنے میں مہارت اور چالاکی کا مظاہرہ کرنا

Skilful means مہارت حاصل کرنا یا دکھانا

Explanation

Length is a base quantity in the International System of Units (SI), with the unit meter (m).

Volume and Area are derived quantities, calculated using base quantities like length.

Explanation

 Leaving group ability:

A good leaving group is a species that can easily depart from a molecule taking a pair of electrons with it. 

Halide trend:

Among halogens (I, Br, Cl, F), iodide (I-) is the best-leaving group because it is the weakest base, meaning it is most stable with a negative charge.