Which one of the following regions is not present in transcriptional unit of DNA

In water hyacinth, pollination is carried out by -
(A). Wind
(B). Water
(C). Insects
(D). Animals
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Arrange the following steps of 'Polymerase Chain Reaction' in a correct sequence.
(A) Annealing of primers
(B) Amplified DNA
(C) Denaturation of DNA
(D) Extension of primers
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The function of the tapetum is:

Resource partitioning among the species is the mechanism to avoid:

Who gave the 'chromosomal theory of inheritance'?

Which one of the following infections is completely curable?

To increase the current sensitivity of a moving coil galvanometer by 75%, its resistance is increased so that the new resistance becomes twice its initial resistance. By what factor does its voltage sensitivity change ?

Match List - I with List - II

List - I	List - II
(A) Charles Darwin	(I) Theory of Populations
(B) Lamarck	(II) Mutation caused speciation
(C) Hugo de Vries	(III) Use and disuse of organs
(D) Thomas Malthus	(IV) H.M.S. Beagle

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Answer the question on the basis of passage given below :
A colloid is a heterogeneous system in which a substance is dispersed (dispersed phase) as fine particles in another substance called dispersion medium.
Their particle size is intermediate between that of pure solutions (less than 1 nm) and suspensions (greater than 1000 nm). They are known for interesting properties such as enormous surface area, Tyndall effect, Brownian motion etc.
They are widely used in industries and day to day life.
Some prominent uses of colloids are those in smoke precipitators, purification of water, medicines, cleansers etc.
Which of the following electrolyte exhibits maximum flocculating power in the coagulation of a positive metal hydroxide sol?

Arrange the following events of human embryo development in a correct sequence:
(A) Blastocyst formation
(B) Implantation
(C) Formation of morula
(D) Cleavage in zygote
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What will happen during the electrolysis of aqueous solution of \(\text{CuSO}_4\) using platinum electrodes?
A. Copper will deposit at cathode.
B. Copper will deposit at anode.
C. Oxygen will be released at anode.
D. Oxygen will be released at cathode.
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A digital signal
A. does not provides a continuous set of values.
B. can utilise binary system
C. represents values as discrete steps
D. can utilise decimal as well as binary system
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