The assisted reproductive technique where embryos with more than 8 blastomeres are transferred into the human uterus is known as:

The steps of DNA fingerprinting are given below. Arrange them in a correct sequence.
(A) Separation of DNA fragments by electrophoresis
(B) Hybridisation using labelled VNTR probe
(C) Isolation and digestion of DNA
(D) Detection of hybridised DNA fragments by autoradiography
(E) Transferring of separated DNA fragments to synthetic membranes
Choose the correct answer from the options given below :

Select which step/s out of the following doesn't/don't belong to the process of decomposition.
(A) Fragmentation
(B) Humification
(C) Anabolism
(D) Mineralisation
(E) Leaching
Choose the correct answer from the options given below:

First meiotic division of primary follicles completes in the

Read the following paragraph carefully and answer the given questions.
Certain types of leukocytes (WBC) of our body like polymorpho-nuclear leukocytes (PMNL-neutrophils) and monocytes and natural killer (type of lymphocytes) in the blood as well as macrophages in tissues can phagocytose and destroy microbes. For determining the cause of allergy, the patient is exposed to or injected with very small doses of possible allergens, and the reactions studied. The use of drugs like anti-histamine, adrenalin and steroids quickly reduce the symptoms of allergy. Heroin, commonly called smack is chemically diacetylmorphine which is a white, odourless, bitter crystalline compound. This is obtained by acetylation of morphine. Techniques like radiography (use of X-rays), CT (computed tomography) and MRI (magnetic resonance imaging) are very useful to detect cancers of the internal organs. Different species of Plasmodium (P. vivax, P. malaria and P. falciparum) are responsible for different types of malaria. Of these, malignant malaria caused by Plasmodium falciparum is the most serious one and can even be fatal.
Which of the following cells are involved in phagocytosis and destruction of microbes?

Hind II is a restriction endonuclease which always cuts DNA molecule at a particular point by recognizing:

Given below are some statements which should be followed to avoid sexually transmitted infections.
Which of the following are correct?
(A) Avoid sex with unknown partners/multiple partners.
(B) Always use medicated IUDs during coitus.
(C) In case of doubt always consult a qualified doctor and get complete treatment if diagnosed infection.
(D) Adopt natural methods of contraception during coitus.
(E) Use of oral pills before coitus.
Choose the correct answer from the options given below:

The first clinical gene therapy was given in 1990 to a 4-year old girl suffering from:

Which position of phenol is involved in coupling reaction with benzene diazonium chloride ?

What is the conductivity of a wire of resistance \(0.05 \Omega\), area of cross section \(2 \times 10^{-4} m^2\) and length 50 cm ?

Coupling of benzene diazonium chloride with phenol yields colored compounds called azo dyes. The reaction requires

For an objective function \(z=a x+b y\) where \(a, b>0\).
The corner points of feasible region determined by a set of constraints are \((0,20),(10,10),(30,30),(0,40)\).
The condition on \(a\) and \(b\) such that max \(z\) occurs at both the points \((30,30)\) and \((0,40)\) is:

For the given linear programming problem \(z=a x+b y, a, b>0\) subject to the constraint
\(2 x+y \leq 10, x+3 y \leq 15, x, y \geq 0\). If the corner points are \((0,0),(5,0),(3,4)\) and \((0,5)\) and \(z\) is maximum at both \((3,4)\) and \((0,5)\), then the relationship between \(a\) and \(b\) is