Which of the following contribute(s) to pole separation during anaphase B?

a. cytosolic dynein     

b. a (-) end-directed kinesin               

c. CENP-E                     

d. microtubule depolymerisation                   

e. microtubule polymerization

TLS Online TPP Program

#Question id: 28900

#Unit 4. Cell Communication and Cell Signaling

Notum, a hydrolase enzyme that associates with glypican and cause___

TLS Online TPP Program

#Question id: 16126

#Unit 13. Methods in Biology

2 You are studying regulation of the yeast enzyme glutamine synthetase (GS), which is encoded by the GLN1 gene. You have isolated two mutants, designated gln2– and gln3–, that give decreased GS activity. Mating of either gln2– or gln3– haploids to wild type produces heterozygous diploids that show normal amounts of GS expression. When you cross either a gln2– or gln3– haploid to a gln1– strain the resulting diploids show normal expression of GS, that could explain the effect of the gln2– and gln3– mutations on the regulation of GLN1.

The GLN1 gene shows a rather complex regulation in response to different amino acids. When either glutamate (glu) or glutamine (gln) is added to the medium, the amount of GS expression diminished and when both glutamate and glutamine are added to the medium GS expression is shut off completely. The effects of different mutants on the response to glu and gln are shown below.

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#Question id: 2283

#Unit 2. Cellular Organization

Most cells are very small. A typical eukaryotic cell, both plant and animal, will occur in which of the following size ranges?

TLS Online TPP Program

#Question id: 434

#Unit 1. Molecules and their Interaction Relevant to Biology

 Anabolic and catabolic reactions in eukaryotes can occur simultaneously in cells. This is possible because ________.

TLS Online TPP Program

#Question id: 18384

#Unit 12. Applied Biology

Halocarbons are widely used as