Practice Questions

TLS Online TPP Program

#Question id: 3821

Which mechanism contributes to accuracy during DNA replication?

#Unit 3. Fundamental Processes

The mismatch repair system recognizes an incorrect base-pair and corrects the mistake in the non-methylated strand.
Using primers increases accuracy because the first nucleotides in a new nucleic acid chain are more likely to be correct.
All DNA polymerases have a 5′→ 3′ exonuclease activity which can remove incorrect nucleotides during replication.
Base-stacking between nucleotides and the template DNA controls insertion of the correct nucleotide.

More Questions

TLS Online TPP Program

#Question id: 5069

#Unit 5. Developmental Biology

The central player in the “canonical” Wnt intracellular signal transduction pathway is called β-catenin in vertebrates and in Drosophila (the homolog of b-catenin):

TLS Online TPP Program

#Question id: 11726

#Unit 6. System Physiology – Plant

SPY acts upstream of GAI and RGA in the Gibberellin signal transduction chain, what is the role of SPY?

TLS Online TPP Program

#Question id: 26587

#Unit 3. Fundamental Processes

Circularisation of telomere known as

TLS Online TPP Program

#Question id: 8717

#Unit 9. Diversity of Life Forms

Molecular clocks are more reliable when ________.