List of practice Questions

In a triangle ABC, AD is the bisector of angle A. If AC =4.2 cm, DC = 6 cm, BC =10 cm, find AB.

The speeds of 3 cars in the ratio 5:4:6. The ratio between the time taken by them to travel same distance is

What value should come in place of question mark(?) in the following equation ?
360 \(\sqrt{?}\) \(+\)4500 = 19700 − 9800.

If a unit vector $\vec{a}$ makes angles $\pi/3$ with $\hat{i} , \pi /4$ with $\hat{j}$ and $\theta \in (0 , \pi)$ with $\hat{k}$, then a value of $\theta$ is : -

Which of the following waste include mixture of biodegradable and non biodegradable waste?

Acid rain mainly result from

Animal pharming can be defined as

Dinosaurs were abundant in

Right auricle of the mammalian heart release blood through

Chronic Obstructive Lung Disease (COLD) is a condition due to

Digested food material is absorbed and taken to liver by

A genetically engineered microorganism used successfully in bioremediation of oil spills is a species of

First vitamin to be produced through fermentation process using a wild bacterium was

The following are true about culture media for microbes:

Lysozyme :

Dark respiration is the function of

Genetically modified crops can be produced by

Maximal application of animal cell culture techniques is in the production of

The most quickly available source of nitrogen to plants are

One of the major difficulties in the biological control of insect pest is that

The backflow of blood into right auricle during ventricular systole is regulated by

RBC placed in 0.9 1.5% Nacl solution, its volume

The equipment which introduces DNA into cells is

Restriction endonucleases

Zeatin isolated from