PCR is useful in population genetics because at times it can be used to study the genetics of bacteria that can’t be cultured axenically.
a. False
b. True
Which of the following statements is NOT true?
d. ions are lost via the skin when we sweat
b. urea is a waste product formed in the kidneys and excreted in the urine
c. carbon dioxide is a waste product of respiration and it leaves the body via the lungs
a. water leaves via the lungs when we breathe out
Are foods derived from genetically modified crops nutritionally superior?
b. Yes, they offer some health advantages over foods produced from conventional crops.
d. No, they are slightly less healthful than foods from conventional crops.
e. No, foods produced from genetically modified crops are a known health risk.
a. Yes, they offer substantial health advantages over foods produced from conventional crops.
c. No, they are neither better nor worse than foods from conventional crops.
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