We need to minimum buffering capacity is required so that the pH value of the samples analyzed does not have any influence on the system, 

What would happen if we used the higher buffering concentration

a) more electric power is applied, resulting in higher heat development. 

b) less electric power for less time  is applied, resulting in very high  heat development

c) higher buffering concentration need more electric power resulting increases in the temperature will increase the mobility and rate of migration of ions.

d) using the higher buffering concentration shows no affect at all

TLS Online TPP Program

#Question id: 2732

#Unit 2. Cellular Organization

DNA is an important therapeutic target for the intercalating agent class of drugs. These drugs work by:

TLS Online TPP Program

#Question id: 2733

#Unit 2. Cellular Organization

The third strand of triple helix is paired in which scheme?

TLS Online TPP Program

#Question id: 2734

#Unit 2. Cellular Organization

Although nucleotides bearing the major purines and pyrimidines are most common, both DNA and RNA also contain some minor bases. In DNA the most common of these are _______________ forms of the major bases; in some viral DNAs, certain bases may be hydroxymethylated or glucosylated.

TLS Online TPP Program

#Question id: 2735

#Unit 2. Cellular Organization

Match the following histone tail modifications with the respective amino acids the modify.

COLUMN I	COLUMN II
I. Sumoylation	a) Lysine and Arginine
II. Deimination	b) Lysine
III.  ADP ribosylation	c) Arginine → Citrulline
IV. Methylation	d) Glutamate

TLS Online TPP Program

#Question id: 2736

#Unit 2. Cellular Organization

Which histone molecule produces novel binding sites for protein components of the kinetochore?

TLS Online TPP Program

#Question id: 2737

#Unit 2. Cellular Organization

The linking number (Lk) of a closed-circular, double-stranded DNA molecule is changed by: