When an ionic compound such as sodium chloride (NaCl) is placed in water, the component atoms of the NaCl crystal dissociate into individual sodium ions (Na+) and chloride ions (Cl-). In contrast, the atoms of covalently bonded molecules (e.g., glucose, sucrose, glycerol) do not generally dissociate when placed in aqueous solution. Which of the following solutions would be expected to contain the greatest number of solute particles (molecules or ions)?

TLS Online TPP Program

#Question id: 34171

#Unit 3. Fundamental Processes

If the rate of fidelity of replication in bacteria is 10^-9/bp. How many replications it would take to make a mistake?

TLS Online TPP Program

#Question id: 34172

#Unit 3. Fundamental Processes

Frameshifts occur when an extra nucleotide is inserted or omitted. Which of sequence and property is most sensitive combination for the frameshift to occur

TLS Online TPP Program

#Question id: 34173

#Unit 3. Fundamental Processes

The 3’–5’ exonucleolytic activity is found in which subunit of bacterial DNA Polymerase III

TLS Online TPP Program

#Question id: 34174

#Unit 3. Fundamental Processes

Once bound to a primer:template junction, DNA polymerase interacts tightly with much of the double stranded portion of the DNA by

TLS Online TPP Program

#Question id: 34175

#Unit 3. Fundamental Processes

A. For processive DNA synthesis, proofreading occurs without releasing the DNA from the polymerase

B. When a mismatched base pair is present in the polymerase active site, the primer:template junction is destabilize

C. The DNA polymerase active site binds such a mismatched template poorly, but the exonuclease active site has a 10-fold higher affinity.

D. The incorrect nucleotide is removed by the 5’-3’-exonuclease nuclease activity

Choose true and false

TLS Online TPP Program

#Question id: 34176

#Unit 3. Fundamental Processes

A. The lagging strand must be synthesized in the form of Okazaki fragments. 

B. Both strands are synthesized discontinuously. 

C. Not all of the fragment population represents bona fide Okazaki fragments; some are pseudofragments

D. Primers start with the sequence pppAG positioned opposite the sequence 3’–GTC-5’ in the template

Choose true and false