Dynamic instability 

Rapid interconversion between a growing and shrinking state, at a uniform free tubulin concentration

TLS Online TPP Program

#Id: 954

#Unit 5. Developmental Biology

When sulfated polysaccharide binds to its receptor on the sperm, activates 3 sperm membrane proteins: 

(1) A calcium transport channel

(2) A sodium-hydrogen exchanger

(3) A phospholipase enzyme (IP3)

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#Id: 4824

#Unit 13. Methods in Biology

Null hypothesis is either rejected or not rejected based on the viability of the given population or sample.

TLS Online TPP Program

#Id: 603

#Unit 2. Cellular Organization

Cells lacking the hfl gene (and thus FtsH) almost always form lysogens upon infection by lambda Then What is fate of cI-?

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#Id: 4576

#Unit 6. System Physiology – Plant

Function of light

a) Development

b) Photosynthesis

c) Stomata opening

d) Flowering

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#Id: 6897

#Unit 3. Fundamental Processes

HP1 is recruited to regions in which histone H3 has been methylated at lysine 9, a modification involved in heterochromatin formation. It turns out that HP1 can also interact with Dnmt1, which can promote DNA methylation in the vicinity of HP1 binding. Furthermore, Dnmt1 can directly interact with the methyltransferase responsible for H3K9 methylation, creating a positive feedback loop to ensure continued DNA and histone methylation.