Which of the following pairs is not an example of homology?

Select the properties of cancer cell
(A) Forms benign tumors
(B) Causes very little damage to the surrounding tissues
(C) Can show Metastasis
(D) Lacks contact inhibition

The gene controlling the ABO blood groups in humans is :

Which of the following enzymes join the sticky ends in recombinant DNA technology?

Match List I with List II

List - I	List - II
(A) Prokaryotic DNA	(I) Nucleosome core
(B) Histones	(II) Higher level chromatin packaging
(C) Octamer	(III) Lysine, Arginine
(D) Non-histone chromosomal proteins	(IV) No charge
	(V) Nucleoid

Choose the correct answer from the options given below:

Spermiation is the

Which one of the followings is not a feature of insecticidal protein crystals formed by Bacillus thuringiensis: -

The following data is available for two independent samples:

	SAMPLE-1	SAMPLE-2
sample size	8	10
sample mean	191	199
sample standard deviation	10	12

The values of ' \(a\) ' and ' \(b\) ' if the equation of straight line trend by least square method is given by \(y=a+b x\) such that \(\sum x=0, \sum y=84, \sum x y=108, \sum x^2=70\) for 6 observation as are :

In a 900 meters race, Ram gives Shyam a start of 150 meters and defeats him by 50 seconds. If the speed of Ram is 4.5 m/sec, then the speed of Shyam is

To avoid the unfavourable conditions, the zooplanktons enter into :

Assuming \(\text{[NiCl}_4\text{]}^{2-}\) as Complex-A and \(\text{[Ni(CO)}_4\text{]}\) as Complex-B, choose the correct statement.
(Atomic number of Ni = 28)

Amines are reactive in nature, mainly due to difference in electronegativity between Nitrogen and Hydrogen and, due to lone pair of electrons on Nitrogen. Amines behave like nucleophiles and as good lewis bases and there are various reactions to support this. Different degree of amines differ in their reactivity due to steric hinderance and electronic effects. Aromatic amines are less basic due to + R effect, hence have higher pk value than aliphatic amines. Basic strength of amines also depends on stability of corresponding conjugate acid in aqueous medium.
Conjugate acid of which of the following amines is most stable?