Which one of the following drugs can not quickly reduce the symptoms of allergy?

Which of the following pair of contrasting traits was not studied by Mendel ?

What is the role of fungal symbiont in mycorrhiza?

Match List I with List - II

List - I	List - II
(A) Aneuploidy	(I) AB blood group
(B) Co-dominance	(II) Sex linked recessive disorder
(C) Pleiotropy	(III) Down's Syndrome
(D) Colourblindness	(IV) Phenylketonuria

Choose the correct answer from the options given below :

Photosynthetically active radiation is :

The eggs of the cuckoo (koel) have evolved to resemble crow's eggs in size and color. If the parasite bird has laid its eggs in the nest of host and lets the host to incubate them. This is an example of:

The two alleles of a gene pair are located on -

Let \(\vec{a}=\hat{i}+4 \hat{j}+2 \hat{k}, \vec{b}=3 \hat{i}-2 \hat{j}+7 \hat{k}\), and \(\vec{c}=2 \hat{i}+\hat{j}+4 \hat{k}\).
A vector \(\vec{d}\) which is perpendicular to both \(\vec{a}\) and \(\vec{b}\) and satisfies \(\vec{c} \cdot \vec{d}=14\) is :

Read the following passage carefully and answer the given questions.
Restriction endonuclease on finding its specific recognition sequence, bind to the DNA and cut each of the two strands of the double helix at specific points in their sugar -phosphate backbones. Each restriction endonuclease recognises a specific palindromic nucleotide sequences in the DNA. Since the DNA is enclosed within the membranes, we have to break the cell open to release DNA along with other macromolecules such as RNA, proteins, polysaccharides and also lipids. This can be achieved by treating the bacterial cells/plant or animal tissue with enzymes such as lysozyme (bacteria), cellulase (plant cells), chitinase (fungus). Now a days the most commonly used matrix is agarose which is a natural polymer extracted from sea weeds. The DNA fragments separate (resolve) according to their size through sieving effect provided by the agarose gel. The first restriction endonuclease-Hind II, whose functioning depended on a specific DNA nucleotide sequence was isolated and characterised five years later. It was found that Hind II always cut DNA molecules at a particular point by recognising a specific sequence of six base pairs. In addition to 'ori', the vector requires a selectable marker, which helps in identifying and eliminating non-transformants and selectively permitting the growth of the transformants. Transformation is a procedure through which a piece of DNA is introduced in a host bacterium. Normally, the genes encoding resistance to antibiotics such as ampicillin, chloramphenicol, tetracycline or kanamycin, etc., are considered useful selectable markers for E. coli.
Transformation is a procedure through which:

Select the correct statement/s about sporopollenin found in pollen grain.
(A) The hard outer layer of pollen grains is made up of sporopollenin.
(B) It is one of the most resistant organic material known.
(C) It does not withstand high temperature and strong acids.
(D) No enzyme can degrades it.
Choose the correct answer from the options given below:

Match List I with List - II.

List - I	List - II
(A) Elephantiasis	(I) Ascaris
(B) Ascariasis	(II) Wuchereria bancrofti
(C) Pneumonia	(III) Plasmodium vivax
(D) Malaria	(IV) Haemophilus influenzae

Choose the correct answer from the options given below :

A current of 10 A in primary of a circuit is reduced to zero at a uniform rate in \( 10^{-3} \text{ s.} \) If coeff. of mutual inductance is 3 H, the induced emf in the secondary would be :

Identify the correct statements in the following:
(A) Optical fibres consist of a core and cladding
(B) Optical fibres are fabricated such that light reflected at one side of the inner surface strikes the other at an angle smaller than the critical angle.
(C) Optical fibres make use of the phenomenon of total internal reflection.
(D) Optical fibres can be used as an optical pipe
Choose the correct answer from the options given below: