Practice Questions

TLS Online TPP Program

#Question id: 3811

The mechanism of DNA replication is studied in an E. coli replication fork. Which is a characteristic of this replication fork?

#Unit 3. Fundamental Processes

Strands I and II have base sequences that are identical to each other.
Strands II and IV have an antiparallel orientation as the fork moves to the right.
Strands I and III will be covalently bonded to each other when replication is completed.
Strands III and IV will be H-bonded to each other when replication is completed.

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TLS Online TPP Program

#Question id: 18760

#Unit 13. Methods in Biology

What is the function of Salmonella Hin invertase?

TLS Online TPP Program

#Question id: 3692

#Unit 3. Fundamental Processes

Which of the following statement is true regarding an enzyme DNA polymerase that catalyzes the elongation of complementary DNA strand?

TLS Online TPP Program

#Question id: 16480

#Unit 12. Applied Biology

What are primary cell cultures

TLS Online TPP Program

#Question id: 24596

#Unit 2. Cellular Organization

When the change in linking number associated with each nucleosome was measured, it was approximately –1.2 for each nucleosome added, while theoretically it should create a writhe of –1.65, This discrepancy is referred to as the

TLS Online TPP Program

#Question id: 12431

#Unit 10. Ecological Principles

Nitrifying bacteria participate in the nitrogen cycle mainly by