Which of the following immunoglobulins does constitute the largest percentage in human milk ?

Which of the following statements are correct with reference to a transcription unit ?
A. A transcription unit in DNA is defined primarily by three regions : promoter, structural gene and terminator.
B. The promoter is said to be located towards the \(5^{\prime}\)-end of the structural gene.
C. The promoter is a DNA sequence that provides binding site for RNA polymerase.
D. The promoter defines the template and coding strands.
E. The terminator is located towards the \(3^{\prime}\)-end of the coding strand and it defines the end of the process of transcription.
Choose the correct answer from the options given below :

How many pairs of contrasting characters in pea plants were studied by Mendel in his experiments?

Match List I with List II :

List I (Bioactive molecules)	List II (Importance)
A. Streptokinase	I. Immunosuppressive agent
B. Statins	II. Removal of clots from the blood vessels
C. Lipases	III. Blood cholesterol-lowering agent
D. Cyclosporin A	IV. Detergent formulations

Choose the correct answer from the options given below :

Match the organism with its use in biotechnology.

\((a)\) Bacillus thuringiensis	\((i)\) Cloning vector
\((b)\) Thermus aquaticus	\((ii)\) Construction of first \(rDNA\) molecule
\((c)\) Agrobacterium tumefaciens	\((iii)\) \(DNA\)polymerase
\((d)\) Salmonella typhimurium	\((iv)\) Cry proteins

Select the correct option from the following: \((a)\quad(b)\quad(c)\quad(d)\)

What is the net gain of ATP when each molecule of glucose is converted to two molecules of pyruvic acid ?

From his experiments, \(S.L.\) Miller produced amino acids by mixing the following in a closed flask

In a common emitter transistor amplifier the audio signal voltage across the collector is \(3\,\, V.\) The resistance of collector is \(3\,k\Omega \). If current gain is \(100\) and the base resistance is \(2\,k\Omega\), the voltage and power gain of the amplifier

If the length of a \(DNA\) molecule is \(1.1\) metres, what will be the approximate number of base pairs?

Match List I with List II :

List-I (Complex)	List-II (Type of isomerism)
(A) \(\left[ Pt \left( NH _3\right)_2 Cl _2\right]\)	(I) Optical
(B) \(\left[ Co ( en )_3\right]^{3+}\)	(II) Solvate
(C) \(\left[ Co \left( NH _3\right)_5 NO _2\right] Cl _2\)	(III) Geometrical
(D) \(\left[ Cr \left( H _2 O \right)_6\right] Cl _3\)	(IV) Linkage

Choose the correct answer from the options given below:

The de-Broglie wavelength of a neutron in thermal equilibrium with heavy water at a temperature \(T\) (kelvin) and mass \(m,\) is 

During muscle contraction in humans, the

Match the following with respect to meiosis:

(a) Zygotene	(i) Terminalization
(b) Pachytene	(ii) Chiasmata
(c) Diplotene	(iii) Crossing over
(d) Diakinesis	(iv) Synapsis