If a cell has an adequate supply of adenine nucleotides but requires more guanine nucleotides for protein synthesis:

1. Glutamine-PRPP amidotransferase will not be fully inhibited.

2. AMP will be a feedback inhibitor of the condensation of IMP with aspartate.

3. ATP will stimulate the production of GMP from IMP.

4. ATP will inhibit nucleoside diphosphate reductase.

TLS Online TPP Program

#Question id: 33274

#Unit 2. Cellular Organization

Which of the following protein contain ATPase domains & act as a motor that moves DNA through the ring, thereby allowing it to create chromosome loops?

TLS Online TPP Program

#Question id: 33275

#Unit 2. Cellular Organization

Which of the following is the central player in chromosome segregation?

a. Interpolar microtubules

b. Astral microtubules

c. K-fibers

TLS Online TPP Program

#Question id: 33276

#Unit 2. Cellular Organization

For microtubule formation, mitotic chromosomes generate local signals that activate:

TLS Online TPP Program

#Question id: 33277

#Unit 2. Cellular Organization

Which of the following kinesins are called chromokinesins, which are plus end–directed motors that associate with chromosome arms and push the attached chromosome away from the pole?

TLS Online TPP Program

#Question id: 33278

#Unit 2. Cellular Organization

During chromosome attachment to the mitotic spindle, the tension-sensing mechanism depends on the protein, known as:

TLS Online TPP Program

#Question id: 33279

#Unit 2. Cellular Organization

The opposite end of the Ndc80 complex is attached through intermediary proteins to centromeric nucleosomes containing a specialized version of histone called: