Entamoeba histolytica is a protozoan parasite found in which part of human body?

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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`.
Some strains of `Bacillus thuringiensis` produce proteins that do not kill ceratin organisms -

Which one of the following sex determination systems is found in honey bee?

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The DNA fragments can be separated by a technique known as gel electrophoresis. Since DNA fragments are negatively charged molecules, they can be separated by forcing them to move towards the anode under an electric field through a medium/matrix. The separated DNA fragments can be visualised only after staining the DNA with a compound known as ethidium bromide followed by exposure to UV radiation. The repeated amplification of DNA is achieved by the use of a thermostable DNA polymerase (isolated from a bacterium, Thermus aquaticus). After completion of the biosynthetic stage, the product has to be subjected through a series of processes before it is ready for marketing as a finished product. The downstream processing and quality control testing vary from product to product. The convention for naming restriction enzymes is the first letter of the name comes from the genus and the second two letters come from the species of the prokaryotic cell from which they were isolated.
The thermostable DNA polymerase is isolated from -

Match List - I with List - II.

List - I	List - II
(A) Rheumatoid arthritis	(I) Primary lymphoid organ
(B) AIDS	(II) Antibody mediated immune response
(C) Thymus	(III) Immuno deficiency disease
(D) B-Lymphocytes	(IV) Auto-immune disease

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The term "biodiversity" was popularised by:

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When a host is exposed to antigens, which may be in the form of living or dead microbes or other proteins, antibodies are produced in the host body. This type of immunity is called active immunity. Active immunity is slow and takes time to give its full effective response. Injecting the microbes deliberately during immunisation or infectious organisms gaining access into body during natural infection induce active immunity. When antibodies are directly given to protect the body against foreign agents, it is called passive immunity.
Match List I with List II

LIST I	LIST II
A. Physical Barrier	I. Saliva
B. Cellular Barrier	II. Interferons
C. Physiological Barrier	III. Skin
D. Cytokine Barrier	IV. Polymorpho-nuclear leukocytes

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Freon-12 is manufactured from tetrachloromethane by :

Mr. 'X' wishes to purchase a house for ₹ \(49,65,000\) with a down payment of ₹ \(15,00,000\) and balance amount in EMI for 25 years. If bank charges \(6 \%\) per annum compounded monthly. Then the EMI is: [Given that \((1.005)^{300}=4.4650\) ]

The area of the region bounded by the curve \(y=\sqrt{a^2-x^2}\) and \(x\) - axis included between the lines \(x=0\) and \(x=a\) is

Name the reaction by which Freons 12 are manufactured

In reference to Inferential Statistics, if \(\bar{x}\) is a sample mean of random data \(\left\{x_i\right\}_{i=1}^n\) and n is the sample size, then the formula \(\frac{1}{n-1} \sum_{i=1}^n\left(x_i-\bar{x}\right)^2\) represents

Which of the following hormone is generally not produced by the placenta?