Lactational amenorrhea refers to:

Which one of the given assisted reproductive technologies (ART) involves transfer of fertilized egg into the fallopian tube?

The Roquefort cheese are ripened by growing a specific_______ on them, which gives them a particular flavour.

Amniocentesis is used to detect the :

Match List - I with List - II.

List - I	List - II
(A) Physical barriers	(I) Acid in stomach, saliva in mouth and tears in eyes
(B) Cytokine barriers	(II) PMNL-neutrophils and monocytes
(C) Cellular barriers	(III) Skin on body, mucus coating of epithelium which lines respiratory tract
(D) Physiological barriers	(IV) Interferons

Choose the correct answer from the options given below :

Which one of the given species has more numbers than the combined total number of rest of the other given species?

Which one of the following diagnostic techniques is based on the principle of antigen-antibody interaction?

Read the passage carefully and answer the Questions
Haloalkanes undergo nucelophilic substitution reactions owing to the polarity of CX bond. The nucleophile reacts with the haloalkane on the carbon possessing a partial positive charge holding the halogen atom. The halogen atom X is replaced by a nucleophile. Depending on the kinetics and mode of bond breaking, the mechanism can be either SN1 or SN2 reaction. The rate of SN1 reaction is governed by the stability of carbocation and in SN2 reaction, the rate of reaction is governed by steric factor. Chirality is the main factor in both SN1and SN2. In SN1 reaction, the chirality of alkyl halide is accompanied by racemization of the product, while in SN2 reaction, the product is characterized by inversion of configuration. The structure of alkyl halide and the nature of the solvent also governs the mechanism of the substitution.
What is meant by the term racemic mixture?

Match List-l with List-ll

List-l (Enzymes)	List-II (Functions)
(A). DNA polymerase	(I). Transcribes precursor of mRNA (hnRNA)
(B). DNA ligase	(II). Transcribes rRNAs
(C). RNA polymerase	(III). Joins the DNA fragments
(D). RNA polymerase II	(IV). Catalyzes the polymerization of deoxynucleotides

the correct answer from the options given below:

Match List I with List II.

LIST I	LIST II
A. Dodo	I. Australia
B. Quagga	II. Mauritius
C. Thylacine	III. Africa
D. Stellar's Sea cow	IV. Russia

Choose the correct answer from the options given below:

Match List I with List II

LIST - I	LIST - II
A. the region represented by \(x \geq 0, y \geq 0\)	i. No feasible region
B. The region represented by the inequalities \(2 x+y \geq 3, x+2 y \geq 6, x, y \geq 0\)	II. ist quadrant
C. The region represented by the inequalities \(x+2 y \leq 8,3 x+2 y \leq 12, x, y \geq 0\)	III. unbounded
D. The region represented by the inequalities \(x+y \leq 2,3 x+5 y \geq 15, x, y \geq 0\)	iv. bounded

Choose the correct answer from the options given below.

The value of \(k\) for which the function \(f(x)=\left\{\begin{array}{ll}\frac{1-\cos 8 x}{16 x^2} & , \text { if } x \neq 0 \\ k & , \text { if } x=0\end{array}\right.\) is continuous at \(x=0\) is :

A motor has an armature resistance \( 4 \, \Omega \). It is operating on 220 V. At its full speed, it develops a back emf of 200 V. The current in the armature when the motor is switched on will be :