Why are dNTPs used as precursors for the DNA polymerase reaction rather than dNDPs?
What will be an ideal response?
The drawback to using dNDPs is that the reverse reaction is easily initiated by Pi, which is a common molecule in the cell. Using dNTPs produces PPi, which is rapidly eliminated thereby preventing the reverse reaction.
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Briefly summarize the four phases of mitosis and cytokinesis
What will be an ideal response?
A(n) exergonic reaction results in a net gain of free energy
__________________ Indicate whether the statement is true or false.
Which of the following groups are considered chordates but are lacking the vertebral column trait?
A. cephalochordates & chondrichthyes B. urochordata & cephalochordates C. sea squirts & chondrichthyes D. osteichthyes & urochordata
Active transport:
a) requires coupling to an energy-releasing system and depends on integral membrane proteins to move solutes across a membrane b) requires coupling to an energy-releasing system c) depends on integral membrane proteins to move solutes across a membrane d) depends solely on diffusion across a membrane from a region of higher concentration to a region of lower concentration