To nucleate the assembly of branched actin filaments, Arp2/3 needs to be activated by___

a) Formins protein

b) nucleation promoting factor (NPF)

c) actin-nucleating proteins (ANP) 

d) Act A protein

TLS Online TPP Program

#Question id: 51

#Unit 1. Molecules and their Interaction Relevant to Biology

 If the equilibrium constant, Keq, for the reaction ATP → ADP + Pi is 2.22 × 10⁵ M, calculate the standard free-energy change, ΔG°, for the synthesis of ATP from ADP and Pi at 25 °C.

TLS Online TPP Program

#Question id: 4084

#Unit 3. Fundamental Processes

The nuclear pore complex

a. is a large complex made of many different proteins.

b. is an octagonal, membrane-embedded structure with long filaments.

c. is required for transport of all molecules in or out of the nucleus.

d. binds to importin via FG-repeats.

e. hydrolyzes bound GTP to GDP

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#Question id: 9225

#Unit 9. Diversity of Life Forms

Use the following figure to answer the question

In looking at the species-area plot in the figure, what can be concluded?

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#Question id: 12367

#Unit 1. Molecules and their Interaction Relevant to Biology

RNA contains ribose sugar. What could happen due the presence of extra hydroxyl group?

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#Question id: 13028

#Unit 13. Methods in Biology

The Vir gene responsible for transcription of other vir genes needed for ssDNA synthesis and endonuclease activity and transport to the plant cell is –