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TLS Online TPP Program
#Question id: 1286
#Unit 4. Cell Communication and Cell Signaling
Syndecans are cell-surface proteoglycans that:
a. bind to collagens.
b. bind to multi-adhesive matrix proteins.
c. anchor cells to the extracellular matrix.
TLS Online TPP Program
#Question id: 10253
#Unit 6. System Physiology – Plant
Two pathways for the splitting of sucrose are known in plants, both of which take part in the use of sucrose from phloem unloading;
TLS Online TPP Program
#Question id: 8933
#Unit 9. Diversity of Life Forms
At which developmental stage should one be able to first distinguish a diploblastic embryo from a triploblastic embryo?
TLS Online TPP Program
#Question id: 12711
#Unit 6. System Physiology – Plant
Various sensors monitor ROS levels in cells; an increase in ROS activates a signal transduction network. ROS scavenging is carried out by antioxidant molecules ____X_________and by antioxidant enzymes such as____Z_________
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?