Which type of molecule was the 32P used to label in the Hershey Chase experiment?
a. a DNA molecule
b. a protein molecule
c. a RNA molecule
d. a phospholipid molecule
Ans: a. a DNA molecule
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Which of the main taste types for which we have receptors is important for detecting possible toxic substances?
A. salty B. sweet C. sour D. bitter E. salty and sweet
Which structure prevents blood flowing back into the heart from the aorta between heartbeats?
A. semilunar valve B. atrioventricular valve C. tricuspid valve D. mitral valve E. ductus arteriosus
Paraoxon is a toxic compound that disrupts the transmission of signals in the ____________________ system and can cause headaches, blurred vision, tremors, unconsciousness, and death by ____________________ arrest
Fill in the blank(s) with correct word
A chromosome whose centromere is close to the end of the chromosome is called _______
A. submetacentric D. mesocentric B. metacentric E. pericentric C. acrocentric