Identify, which is not the recently extinct species?

Arrange the given steps in correct sequence of their occurrence when lactose is provided in the growth medium of bacteria:
(A) Operator got free, RNA polymerase binds to promoter
(B) Lactose is hydrolysed to glucose and galactose
(C) Lactose binds to repressor protein
(D) Gene z, y, a are transcribed
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Observe the given figures and answer the question

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

GM crops are better to grow because they :
(A) are more tolerant to abiotic stresses
(B) decrease efficiency of mineral usage
(C) are less reliant on chemical pesticides
(D) reduce post harvest losses"
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Match List I with List II

List - I	List - II
(A) Convergent evolution	(I) Speciation
(B) Divergent evolution	(II) Analogous organs
(C) Adaptive radiation	(III) Homologous organs
(D) Natural selection	(IV) Australian marsupials

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Bacillus thuringiensis is widely used these days as:

In gel electrophoresis, the separated DNA fragment can be visualized -

Answer the question on the basis of passage given below:
Proteins are the polymers of about twenty different a-amino acids which are linked by peptide bonds. Proteins perform various structural and dynamic functions in the organisms. Proteins which contain only a-amino acids are called simple proteins. The secondary or tertiary structure of proteins get disturbed on change of pH or temperature and they are not able to perform their functions. This is called denaturation of proteins. Enzymes are biocatalysts which speed up the reactions in biosystems. Vitamins are accessory food factors required in the diet. They are classified as fat soluble (A, D, E and K) and water soluble (B group and C). Deficiency of vitamins leads to many diseases. Nucleic acids are the polymers of nucleotides which in turn consist of a base, a pentose sugar and phosphate moiety. Nucleic acids are responsible for the transfer of characters from parents to offsprings. There are two types of nucleic acids DNA and RNA. DNA contains a five carbon sugar molecule called 2-deoxyribose whereas RNA contains ribose.
Which of the following is an essential amino acid?

Why does a microwave oven heat up a food item containing water molecules efficiently?

The work done by the field of a nucleus in a complete circular orbit of the electron is

A zener diode is :

The process of copying genetic information from one strand of DNA into RNA is termed as

A current of 2 A flows through a plane circular coil of radius 3 cm and having 50 turns. The coil has been placed in a uniform magnetic field of 0.6 T. The minimum potential energy of the coil will be