Match List-l with List-II

LIST- I (Population interaction)	LIST- II ( Example)
(A) Parasitism	(I) Herbivores and plants
(B) Commensalism	(II) Human liver fluke
(C) Mutualism	(III) Egret and grazing cattle
(D) Competition	(IV) Lichens

Choose the correct answer from the options given below:

Match List I with List - II.

List - 1	List - II
(A) Biocontrol agent	(I) Aphids
(B) Mycorrhiza	(II) Methanobacterium
(C) Ladybird	(III) Trichoderma
(D) Biogas	(IV) Glomus

Choose the correct answer from the options given below :

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.
RNAi involves involves silencing of a specific mRNA due to a complementary__________ molecule that binds to and prevents translation of the mRNA.

Arrange the steps of Polymerase chain reaction in proper sequence-
A. Selection of desired fragment of DNA
B. Annealing
C. Amplification
D. Extension
E. Denaturation
Choose the correct answer from the options given below

Read the following paragraph and answer the given questions.
RNAi takes place in all eukaryotic organisms as a method of cellular defense. The source of this complementary RNA could be from an infection by viruses having RNA genomes or mobile genetic elements (transposons) that replicate via an RNA intermediate. Insulin from an animal source, though caused some patients to develop allergy or other types of reactions to the foreign protein. Insulin consists of two short polypeptide chains: chain A and chain B, that are linked together by disulphide bridges. Transgenic mice are being developed for use in testing the safety of vaccines before they are used on humans. Transgenic mice are being used to test the safety of the polio vaccine. If successful and found to be reliable, they could replace the use of monkeys to test the safety of batches of the vaccine. Specific Bt toxin genes were isolated from Bacillus thuringiensis and incorporated into the several crop plants such as cotton. The choice of genes depends upon the crop and the targeted pest, as most Bt toxins are insect-group specific. The toxin is coded by a gene cryIAc named cry. There are a number of them, for example, the proteins encoded by the genes cryIAc and cryIIAb control the cotton bollworms, that of cryIAb controls corn borer.

The Bt toxin gene cryIAb controls the:

Match List - I with List - II.

List - I	List - II
(A) Barrier methods	(I) Prevents physical contact between ovum and sperm
(B) IUD	(II) Sterilizes physical contact between ovum and sperm
(C) Oral Contraceptives	(III) Increases phagocytosis of sperms and suppress sperm motility:

Choose the correct answer from the options given below :

Match List - I with List - II.

LIST I	LIST II
(A) Polyembryony	(I) Apple
(B) Parthenocarpy	(II) Female gametophyte
(C) False Fruit	(III) Orange
(D) Embryo Sac	(IV) Banana

Choose the correct answer from the options given below :

Arrange the following steps in sequence for Ascaris infection in humans :
(A) Development of round worms in human host
(B) Excretion of parasite eggs along with the feces of infected person resulting in soil and water contamination
(C) Infection of healthy person via contaminated water, vegetables, fruits etc.
(D) Muscular pain, fever, blockage of intestinal passage
Choose the correct answer from the options given below:

Area bounded by the curve \(y=\cos ^{-1} x\) and the lines \(x=0, x=1\) is:

The susceptibility \( (\chi_m) \) and permeability \( (\mu) \) of a perfectly diamagnetic substance are :

The value of \(\int_{-1}^1\left|x^3-x\right| d x\) is

Predict which of the following mixtures will show a positive deviation from Raoult's Law ?

In a Young's double slit experiment, the distance between slits is 2.5 mm and the screen is placed 2 m away from the slits. The fringe width for a light of wavelength 400 nm is