Practice Questions

TLS Online TPP Program

#Question id: 24263

Choose the incorrect option

#Unit 2. Cellular Organization

The two H2A.H2B dimers each associate with 30 bp of DNA on either side of the central 60 bp of DNA bound by H3 and H4.
Using the clock analogy again, the DNA associated with H2A.H2B is located from 5 o’clock to 9 o’clock on either face of the nucleosome disc.
Together, the two H2A.H2B dimers form the upper part of the histone octamer located across the disc from the DNA ends
Each nucleosome added to a covalently closed circular template changes the linking number of the associated DNA by approximately –1.2.

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TLS Online TPP Program

#Question id: 1131

#Unit 4. Cell Communication and Cell Signaling

Which of the following function(s) as an inhibitor of TGFβ signal transduction?

a. R-Smad b. I-Smad c. Co-Smad d. Ski e. SnoN

TLS Online TPP Program

#Question id: 10826

#Unit 10. Ecological Principles

Gause's principle of competitive exclusion is, essentially,

TLS Online TPP Program

#Question id: 298

#Unit 1. Molecules and their Interaction Relevant to Biology

Water molecules contain _____________ hydrogen bond/s.

TLS Online TPP Program

#Question id: 15777

#Unit 5. Developmental Biology

Which of the following is not a property of the progenitor cell?

TLS Online TPP Program

#Question id: 4195

#Unit 3. Fundamental Processes

Unlike bacterial mRNA, eukaryotic mRNA must undergo __ before it may be used for translation.