Read the passage carefully. Attempt the questions.
An overwhelming majority (99 per cent) of animals and nearly all plants cannot maintain a constant internal environment. Their body temperature changes with the ambient temperature. In aquatic animals, the osmotic concentration of the body fluids change with that of the ambient air and water osmotic concentration. These animals and plants are simply conformers. Considering the benefits of a constant internal environment to the organism, we must ask why these conformers had not evolved to become regulators. Recall the human analogy we used above; much as they like, how many people can really afford an air conditioner? Many simply 'sweat it out' and resign themselves to suboptimal performance in hot summer months. Very small animals are rarely found in polar regions. During the course of evolution, the costs and benefits of maintainin a constant internal environment are taken into consideration. Some species have evolved the ability to regulate, but only over a limited range of environmental conditions, beyond which they simply conform.
If the stressful external conditions are localised or remain only for a short duration, the organism has five other alternatives for survival.
Identify the animal which is NOT a conformer.

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.
A natural polymer extracted from sea weeds used in the field of biotechnology is:

Which of the following used hides to protect their body and buried their dead?

Match List-l with List-ll

List-l (Organisms)	List-II (Products/Bioactive molecule)
(A) Trichoderma polysporum	(I) Citric acid
(B) Monascus purpureus	(II) Cyclosporin A
(C) Aspergillus niger	(III) Ethanol
(D) Saccharomyces cerevisiae	(IV) Statins

Choose the correct answer from the options given below:

In the exponential growth model equation dN/dt= rN 'N' stands for:

Identify the statements which are not true with respect to Heterochromatin.
(A) Loosely packed
(B) Densely packed
(C) Stains light
(D) Transcriptionally active
Choose the correct answer from the options given below :

Arrange the following steps in sequence of their occurance in the process of genetic modification of an organism.
(A) Cutting of desirable genes and vector DNA by molecular scissors.
(B) Introduction and maintenance of recombinant DNA in the host cell.
(C) Identification of DNA sequence with desirable gene.
(D) Linking of desirable genes with vector DNA.
Choose the correct answer from the options given below :

If \(A=\left[\begin{array}{cc}\cos \theta & \sin \theta \\ -\sin \theta & \cos \theta\end{array}\right]\), then \(A^2=\)

The electric field in a copper wire of cross-sectional area \( 2.0 \, \text{mm}^2 \) carrying a current of 1 A is:
(Given: Resistivity of copper \( \rho = 2 \times 10^{-8} \, \Omega\text{.m} \))

Which of the following is NOT a step of decomposition process?

The area of the region bounded by the curve \(x=y^2\), y-axis and the line y = 3 and y = 4 is:

A die is tossed once. If the random variable X is defined as \(\mathbf{X}=\left\{\begin{array}{ll}1, & \text { if the die result in an odd number } \\ -1, & \text { if the die result in an even number }\end{array}\right.\) then the variance of X is

If \(y=5 e^{2 x}+4 e^{3 x}\), then \(\frac{d^2 y}{d x^2}\) equals: