Practice Questions

TLS Online TPP Program

#Question id: 3838

Which of the following statements correctly describes the difference between the leading and the lagging strands of DNA during DNA replication?

#Unit 3. Fundamental Processes

The leading strand is synthesized in the same direction as the movement of the replication fork, and the lagging strand is synthesized in the opposite direction.
The leading strand is synthesized by adding nucleotides to the 3' end of the growing strand, and the lagging strand is synthesized by adding nucleotides to the 5' end.
The lagging strand is synthesized continuously, whereas the leading strand is synthesized in short fragments that are ultimately stitched together.
The leading strand is synthesized at twice the rate of the lagging strand.

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TLS Online TPP Program

#Question id: 2501

#Unit 2. Cellular Organization

Which of the following does NOT belong to the intermediate filament protein family?

TLS Online TPP Program

#Question id: 22953

#Unit 5. Developmental Biology

The MADS box gene form tetramers that bind to

TLS Online TPP Program

#Question id: 31152

#Unit 2. Cellular Organization

Incubation of cell extracts with a nonhydrolyzable derivative of GTP for dynamin in the pinching off of vesicles during endocytosis, resulting:

TLS Online TPP Program

#Question id: 21260

#Unit 12. Applied Biology

L-Cysteine has traditionally been obtained by extracting it from acid hydrolysates of human hair and animal feathers. High levels cannot be synthesized from glucose because l-cysteine feedback inhibits the enzyme, which catalyzes one of the steps in the biosynthesis of l-cysteine. These enzyme are,

TLS Online TPP Program

#Question id: 11598

#Unit 6. System Physiology – Plant

How the GA3 is differ from GA1______