Read the paragraph given below and answer the question. Insulin used for diabetes was earlier extracted from slaughtered cattle and pigs. Insulin from an animal source, though caused some patients to develop allergy or other type of reactions. Insulin consists of two short polypeptide chains: chain A and chain B, that are linked bridges. In mammals, including human, insulin is synthesised as a pro-hormone. Patient with diabetes have:

Identify the microbes producing commercially important organic acids and enzymes from the given options:
(A) Trichoderma polysporum
(B) Streptococcus
(C) Clostridium butylicum
(D) Aspergillus niger
Choose the correct answer from the options given below:

The process of cutting out of DNA fragments from agarose gel and their extraction from gel piece is known as:

Which one of the following represents a palindromic sequence?

What percentage of the earth's land area is covered by all hotspots put together?

Read the passage carefully to answer the questions given below
Some strains of `Bacillus thuringiensis` produce proteins that kill certain insects such as lepidopterans (tobacco budworm, armyworm), coleopterans (beetles) and dipterans (flies, mosquitoes). In `Bacillus thuringiensis` the toxin is coded by a gene `crylAc` named cry. There are a number of them, for example, the proteins encoded by the genes `crylAc` and `cryllAb` control the cotton bollworms, that of `crylAb` controls corn borer. Using conventional methods of diagnosis (serum and urine analysis, etc.) early detection is not possible. Recombinant DNA technology, Polymerase Chain Reaction (PCR) and Enzyme Linked Immuno-sorbent Assay (ELISA) are some of the techniques that serve the purpose of early diagnosis. The first clinical gene therapy was given in 1990 to a 4-year old girl with adenosine deaminase (ADA) deficiency. This enzyme is crucial for the immune system to function. The disorder is caused due to the deletion of the gene for adenosine deaminase. `RNAi` takes place in all eukaryotic organisms as a method of cellular defense. This method involves silencing of a specific `mRNA` due to a complementary `dsRNA` molecule that binds to and prevents translation of the `mRNA`.
Which of the following technique is not used for early diagnosis of diseases?

Identify the correct hormone releasing IUDs?

The energy of a photon of wavelength (\( \lambda \)) is given by the expression: (Symbols have their usual meaning: h = Planck's constant, c = speed of light)

If the line \(\frac{-x+1}{3}=\frac{-y-2}{-2 k}=\frac{z+3}{2}\) and \(\frac{-1+x}{3 k}=\frac{-1+y}{1}=\frac{-z+6}{5}\) are perpendicular, then the value of \(k\) is :

Identify the correct statements.
(A) Neutrons penetrate the nucleus more readily as compared to protons.
(B) It is easier to release an orbital electron, but quite difficult to release a nucleon.
(C) Nuclear density is not the same for all nuclei.
(D) The radius of the nucleus is directly proportional to the cube root of the mass number.
Choose the correct answer from the options given below:

The current in a coil falls from 5 A to 0 A in 0.1 s. If an average emf of 100 V is induced, then the self-inductance of the coil would be

\(A\) and \(B\) take turns in throwing a pair of dice, the first to throw a sum of 9 wins the prize.
If \(A\) throws first, then the ratio of the probabilities of \(A\) and \(B\) winning is :

Consider three long straight parallel wires as shown in the figure. Length of wire B is 25 cm. Choose the correct options based

(A) Net force experienced by wire B is \( 2 \times 10^{-4} \) N towards left
(B) Magnitude of repulsion force by wire A on B is \( 5 \times 10^{-4} \) N
(C) Magnitude of repulsion force by wire C on B is \( 2 \times 10^{-4} \) N
(D) Net force experienced by wire B is \( 2 \times 10^{-4} \) N towards right
Choose the correct answer from the options given below: