Which platelet hormone aids in the prevention of blood loss?
a. ATP
b. serotonin
c. heparin
d. fibrinogen
e. thrombin
ANSWER: b
Biology & Microbiology
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Two different nucleic acids can ________ by annealing at their complementary sites.
A. covalently bond B. hybridize C. ligate D. form a peptide bond
Biology & Microbiology
NADH serves as an electron carrier that can donate its hydrogen to other molecules.
a. true b. false
Biology & Microbiology
A point mutation changes a codon from UCG to UAG. What will happen to the resulting polypeptide?
What will be an ideal response?
Biology & Microbiology
Closure of the Na+ channel inactivation gate is responsible for the ______ refractory period.
Fill in the blank(s) with the appropriate word(s).
Biology & Microbiology