Mg2+ ions are required for optimal DNA polymerase activity
Indicate whether the statement is true or false
TRUE
Explanation: DNA polymerases often require magnesium ions as cofactors.
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The adhesion step in extravasation is most likely to be mediated by:
A. integrin proteins. B. cell wall proteins. C. collagen. D. keratin.
What are rounded pads of fatty tissue lying along both sides of the vaginal opening and are covered with pubic hair?
A. labia majora B. fallopian tubes C. labia minora D. seminiferous tubules
In fetal circulation, most blood is shunted away from the lungs. Why is this the case?
A) The lungs don't need any blood. B) The fetus receives oxygen at the placenta, and the lungs are not yet fully functional. C) The lungs do not form until right before birth. D) The lungs have their own circulation.
Which of the following is common to both avian and mammalian development?
A) holoblastic cleavage B) epiblast and hypoblast C) trophoblast D) yolk plug E) gray crescent