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(Solved): 1 pts Question 45 Which of the following is NOT one of the ways that M-Cdk promotes mitosis? Phosph ...
1 pts Question 45 Which of the following is NOT one of the ways that M-Cdk promotes mitosis? Phosphorylating Histone H1 and condensin proteins to initiate chromosome condensation O Phosphorylating nuclear lamins to promote nuclear envelope breakdown O Phosphorylating mitogens to deactivate them, so that cells stay in GO O Phosphorylating an inhibitory site on Myosin, so as to prevent early cytokinesis (cell division)
Question 43 Name the E3 ligase that ubiquitinates M-cyclins, tagging them for destruction in a proteasome. O Securin Separase Anaphase Promoting Complex (APC) Cohesin
Question 44 TRUE or FALSE: 1fp53 is activated in response to DNA damage, it will drive the cell to self- destruct via apoptosis right away, regardless of the extent of damage or the time it takes to repair the damage True O False
Question 41 You have discovered a novel protein BUZZKILL that inhibits the activation of M-Cdk. However, you later discover that M-Cdk directly inhibits the activity of BUZZKILL! The result is that once the first few M-Cdks in a cell are activated, those activated M-Cdks will inhibit BUZZKILL proteins, resulting in more rapid activation of other M-Cdks. Activated M-Cdk's inhibition of BUZZKILL is an example of: Positive feedback O Negative feedback
Answer to Q no. 45: Phosphorylating mitogens to deactivate them, so that cells stay in G0. M-cdk promotes mitosis by initiating mitotic spindle formation, chromosome condensation and breaking down nuclear envelope. M