The activity of Rb is controlled by

A) its phosphorylation state.
B) cyclin A.
C) E2F.
D) its poly-A tail.
E) its level of methylation.


A) its phosphorylation state.

Biology & Microbiology

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It appears that the most important senses involved in human sexual attraction are 

A. hearing and touch. B. sight and smell. C. taste and smell. D. touch and smell.

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After meiosis II, ________ would be formed

A) synapsis B) chiasma C) dyads D) monads E) tetrads

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What type of thinking is required?

What will be an ideal response?

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All of the following are functions of the heart EXCEPT:

A. generation of blood pressure B. ensures one way flow of blood C. generation of the formed elements of the blood D. regulates rate and force of blood delivery E. distributes oxygenated blood to tissues

Biology & Microbiology