GroES 

TLS Online TPP Program

#Question id: 978

#Unit 1. Molecules and their Interaction Relevant to Biology

Which is a common precursor in the de novo synthesis of purine nucleotides?

TLS Online TPP Program

#Question id: 12481

#Unit 2. Cellular Organization

Following statements are regarding to Kinetochore-microtubule interaction in S. cerevisiae.

A. In the simple kinetochore of S. cerevisiae, a protein complex called CBF3 associates with specialized, centromere-specific form of histone H3, called CENP-A.

B. The Ndc80 complexes initially make lateral interactions with a spindle microtubule and subsequently interact with a Dam1 complex, which forms a ring around the end of the microtubule. This interaction results in an end-on attachment of the centromere to the

spindle microtubule.

C. Microtubules that “capture” kinetochores are selectively stabilized by a reduction in the rate of catastrophes, which increases the chance that the attachment will persist.

D. With the two kinetochores attached to opposite poles, the duplicated chromosome is now under tension, being pulled in both directions by the one sets of kinetochore microtubules.

Which of the following combinations is correct?

TLS Online TPP Program

#Question id: 2968

#Unit 2. Cellular Organization

What is the name of the microtubule-organizing center found in animal cells as an identifiable structure present during all phases of the cell cycle?

TLS Online TPP Program

#Question id: 301

#Unit 1. Molecules and their Interaction Relevant to Biology

What explains the very high melting and boiling point of water?

TLS Online TPP Program

#Question id: 2928

#Unit 2. Cellular Organization

Which of the following S. pombe mutants is(are) larger than normal?