Which one of the following diseases is non-infectious?

Transmission of HIV-Infection occurs by-
(A). Using infected needles by the health staff or by drug abusers
(B). Transfusion of contaminated blood and blood product
(C). Sexual contact with infected person
(D). Sharing food and sanitation facilities
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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.
which is passive immunisation?

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:

EcoRl, a significant tool in rDNA technology is -

In the majority of flowering plants, a certain pattern is followed in megaspore mother cell (MMC) undergoing meiosis and producing megaspores. How many functional megaspores would be produced with 32 MMC?

Which Assisted Reproductive Technology (ART) is more suitable when the male partner has low sperm count?

Identify the statements which are not correct with respect to embryonic development:
(A) By the end of 12 weeks the body of foetus is covered with fine hair
(B) The first sign of growing foetus is the appearance of heart beat
(C) Foetus develop limbs and digits by the end of second month of pregnancy
(D) The ectoderm, mesoderm and endoderm are formed after first trimester of pregnancy
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An element \( \Delta \vec{l} = 0.5 \hat{j} \text{ cm} \) is placed at the origin and carries a large current \( I = 10 \text{ A} \). The magnetic field at point (50 cm, 0) is

The positive value of \(E^{\circ}_{Cu^{2+}/Cu}\) indicates that
A. Copper electrode is a stronger reducing agent than \(SHE\).
B. Copper electrode is a stronger oxidising agent than \(SHE\).
C. Copper can displace \(H_2\) from \(HCl(aq)\).
D. Copper cannot displace \(H_2\) from \(HCl(aq)\).
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If the system of equations \(2 x+5 y=7,6 x+\lambda y=28\) is inconsistent, then

For finding absolute maximum and minimum values of a function \(f\) given by
\(f(x)=2 x^3-15 x^2+36 x+1 \text { on }[1,5]\)
A. the critical points in \((1,5)\) are 2 and 3 .
B. the absolute maximum value of \(f\) on \([1,5]\) is 29 .
C. the absolute minimum value of \(f\) on \([1,5]\) is 24 .
D. the absolute minimum value of \(f\) on \([1,5]\) is 20 .
E. we evaluate the value of \(f\) at critical points and at the end points of the interval \([1,5]\).
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Which of the following statement(s) is/are correct?
(A) The power of a lens is the ability of the lens to converge or diverge the incident rays.
(B) S.I unit of the power of a lens is dioptre while focal length is in centimetres
(C) For a lens of larger focal length, power is smaller
(D) In any combination of lenses, the power of combination is not algebraic addition of power of combined lenses
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