Observe the given figures and answer the question

Miller's experiment resulted in the acceptance that the formation of life was
preceded by:

Read the following paragraph carefully and answer the given questions.
Certain types of leukocytes (WBC) of our body like polymorpho-nuclear leukocytes (PMNL-neutrophils) and monocytes and natural killer (type of lymphocytes) in the blood as well as macrophages in tissues can phagocytose and destroy microbes. For determining the cause of allergy, the patient is exposed to or injected with very small doses of possible allergens, and the reactions studied. The use of drugs like anti-histamine, adrenalin and steroids quickly reduce the symptoms of allergy. Heroin, commonly called smack is chemically _______________ which is a white, odourless, bitter crystalline compound.

Arrange the given steps of the Hershey and Chase experiment in correct sequence.
(A) Separation of virus particles from bacteria by centrifugation
(B) Infection of bacteria with phage DNA
(C) Radioactive bacteriophages were allowed to attach the bacteria
(D) Removal of viral coat from bacteria by blending
Choose the correct answer from the options given below:

Which of the following is TRUE for gel electrophoresis ?
(A) It is used to separate DNA fragments.
(B) Separation of DNA occurs on the basis of the fragment size.
(C) Separation of DNA fragments occurs on the basis of charge.
(D) Separated DNA fragments can be visualised without staining.
Choose the correct answer from the options given below:

Silencing of mRNA has been used in producing transgenic plants which are resistant to:

Which of the protein encoded by gene controls corn borer?

In angiosperms, the outer wall of ovary develops into :

\(\int_{-1}^1 \frac{x^3+|x|+1}{x^2+2|x|+1} d x\) is equal to

A random variable X denotes the number of sixes obtained in three throws of a die. Find the mean of the distribution

Let \(y=\sin \left(\cos x^2\right)\), then the value of \(\frac{d y}{d x}\) at \(x=\frac{\sqrt{\pi}}{2}\) is equal to:

Choose the wrong statement.

In the process of extraction, gold combines with cyanide in the presence of oxygen and water to make a complex.
The formula of the complex is

An asset costing C is expected to have a useful life of 5 years. If the scrap value of the asset is 3,000 and the annual depreciation charge is 2,400, then the value of C is :