Answer:
(c) falls toward the end of M phase as a result of ubiquitylation and degradation.
Explanation:
Cyclins are the regulatory proteins of the cell cycle. The levels of cyclins change during the cell cycle. The function of cyclins is to activate cyclin-dependent kinases. Mitotic cyclins undergo specific and precisely timed proteolytic breakdown which in turn regulates CDK activity throughout the cell cycle. A cell can continue the process of mitosis when cyclins A and B are the first activated and then degraded.
The mitotic cyclins contain a destruction box near their amino terminus which in turn targets them for degradation. The destruction box recognizing protein (DBRP) recognizes this sequence and initiates the process of cyclin degradation. DBRP facilitates the interaction of mitotic cyclin and ubiquitin. Cyclin and activated ubiquitin are covalently joined by the enzyme ubiquitin ligase followed by binding of several more ubiquitin molecules.
This process of binding of ubiquitin to the mitotic cyclins is called ubiquitylation and serves to signal a proteolytic enzyme complex, or proteasome, to degrade cyclin.
Answer:
No,really. It is possible that a recessive trait in a survey such as this one may have a greater total number than its dominant counterpart...... Because all of the offspring can in herit the came recessive trait.
I believe it's C. The predator population will stay high in order to maintain a low prey population.
False. Because Speciation is just a small part of Evolution.
Before and after the patient coughs