Practice Questions

TLS Online TPP Program

#Question id: 23106

Some of the events are mentioned below, Choose the incorrect statement,

#Unit 2. Cellular Organization

The 30-nm fiber is then further folded and compacted into interphase chromatin or into mitotic chromosomes
This 30-nm fiber is further folded, results in 1000-fold compaction in euchromatin in interphase chromatin and in mitotic chromosomes to achieve an overall 10,000- fold compaction in euchromatin.
Heterochromatin generally maintains 10,000-fold compaction in both interphase and mitosis after 30 nm.
Heterochromatin generally maintains 1000-fold compaction in both interphase and mitosis after 30 nm

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#Question id: 11106

#Unit 7. System Physiology – Animal

The respiratory conducting passageways perform all of the following functions EXCEPT:

#Question id: 4415

#Unit 3. Fundamental Processes

PML nuclear bodies are also sites of post-translational modification of proteins through the addition of

#Question id: 4318

#Unit 3. Fundamental Processes

Which of the following statements correctly describes a characteristic of tumor-suppressor gene?

#Question id: 4552

#Unit 3. Fundamental Processes

The sequence of σ54 is distinctly different from that of all the σ70-like factors, some characteristics about σ54 is given below;

a) The σ54-RNA polymerase binds to the glnA promoter and immediately melt the DNA strands and initiate transcription

b) σ54-polymerase does not require ATP hydrolysis to separate the strands at a start site only require activator such as NtrC

c) σ54-RNA polymerase initiate transcription of glnA promoter only when it is activated by NtrC

d) ATP hydrolysis is required for activation of bound σ54-RNA polymerase by phosphorylated NtrC

Which of the following from the bove combination is INCORRECT?

#Question id: 3708

#Unit 3. Fundamental Processes

The incorporation of new nucleotides into a growing strand of DNA occurs during ________.