Read the passage and answer the question given below.
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.
Immunity provided to the foetus from the mother through placenta during pregnancy is :

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?

Match List I with List II.

LIST I	LIST II
A. Down's Syndrome	I. Absence of a copy of X chromosome
B. Klinefelter's Syndrome	II. Presence of additional copy of X chromosome
C. Turner's Syndrome	III. Mutation in X chromosome
D. Colour blindness	IV. Trisomy of 21st chromosome

Choose the correct answer from the options given below:

Which of the following hormone is not secreted by placenta ?

Which of the following ecosystem is most productive in terms of net primary productivity?

The size of VNTR varies from:

In which type of RNA, methyl guanosine triphosphate capping is added to 5'-end ?

If \(f(x)=x^3 \log _e x\), Then \(f^{\prime \prime}\left(e^2\right)\) is equal to

Identify the incorrect statement:

If \(A\) is a square matrix such that \(A^2=A\) and \(I\) is the identity matrix of the same order as \(A\), then \((I+2 A)^2-5 A\) is equal to :

Two persons A and B throw a die alternately till one of them gets a 'three' and wins the game. The probability of A's winning if A starts first is :

Select the correct statements from the following:
(A) Mn show the highest oxidation state in first transition series elements
(B) Titanium (II) is more stable than titanium (III) and titanium (IV).
(C) Scandium does not exhibit variable oxidation states.
(D) Zn form complexes with only (II) oxidation state.
Choose the correct answer from the options given below:

A field of \( 2 \times 10^{3} \text{ A/m} \) produces a flux of \( 2.4 \times 10^{-5} \text{ Wb} \) in an iron bar having area of cross-section \( 0.2 \text{ cm}^2 \). The relative permeability of medium is: