List of practice Questions

Angle between the tangent and radius drawn through the point of contact is

The mean of 17, 4, 8, 6 and 15 is m, the median of 8, 14, 10, 5, 7, 5, 20, 19 and n is (m-1). Then the values of m and n are

Find the mode when median is 125.6 and mean is 128.

From the top of the tower 60 mts high the angle of depression of two objects due north and due south of the tower are 60° and 45° then the distance between two objects is 60

What is the probability of getting an even number in a single throw of a die?

A number chosen from 1 to 100. Find the probability that it is a prime number ____

Two metallic wires 'A' and 'B' are having same cross-sectional areas and same current passes through them. Find ratio of drift velocity of electrons in wire 'A' and 'B'.
[electron density of wire A = 8.0×10²⁸m^-3 and electron density of wire B = 9.0×10²⁸m^-3]

If the distance between two consecutive base pairs is 0.34nm and the total number of base pairs of a DNA double helix in a typical mammalian cell is $6.6 \times 10^9$ bp, then the length of the DNA is approximately:

Which is the important site of formation of glycoproteins and glycolipids in eukaryotic cells ?

Which of the following statements is correct?

Which of the following statements about inclusion bodies is incorrect ?

Select the correct events that occur during inspiration.
(a) Contraction of diaphragm 
(b) Contraction of external inter - costal muscles 
(c) Pulmonary volume decreases 
(d) Intra pulmonary pressure increases

The first phase of translation is:

The size of Pleuropneumonia - like Organism (PPLO) is :

Match the following columns and select the correct option.

Match the following with respect to meiosis: 

a	Zygotene	i	Terminalization
b	Pachytene	ii	Chiasmata
c	Diplotene	iii	Crossing over
d	Diakinesis	iv	Synapsis

Select the correct option from the following:

Meiotic division of the secondary oocyte is complete

Name the enzyme that facilitates opening of DNA helix during transcription.

The transverse section of a plant shows following anatomical features: 
(a) Large number of scattered vascular bundles surrounded by bundle sheath. 
(b) Large conspicuous parenchymatous ground tissue. 
(c) Vascular bundles conjoint and closed. 
(d) Phloem parenchyma absent. 
Identify the category of plant and its part

Identify the wrong statement with reference to immunity.

The product(s) of reaction catalyzed by nitrogenase in root nodules of leguminous plants is/are :

In gel electrophoresis, separated DNA fragments can be visualized with the help of :

Which of the following is put into Anaerobic sludge digester for further sewage treatment?

Match the following concerning essential elements and their functions in plants:

a	Iron	i	Photolysis of water
b	Zinc	ii	Pollen germination
c	Boron	iii	Required for chlorophyll biosynthesis
d	Manganese	iv	IAA biosynthesis

Match the following :

a	Inhibitor of catalytic activity	i	Ricin
b	Possess peptide bonds	ii	Malonate
c	Cell wall material in fungi	iii	Chitin
d	Secondary metabolite	iv	Collagen