Most carbon dioxide is carried in blood as ___
which is formed in ___.
a. carbonic acid...the plasma
b. the bicarbonate ion...red blood cells
c. carbon dioxide...hemoglobin
d. carbon dioxide...red blood cells
e. the bicarbonate ion...the plasma
B
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Which sequences of RNA are removed after transcription occurs because they do not code for functional proteins?
a. promoters b. terminators c. exons d. introns
Which of the following protists may cause
dysentery after drinking contaminated water?
a. dinoflagellates b. apicomplexans c. amoebas d. ciliates e. water molds
The interwoven mass of cells that forms large structures such as an earthstar or a mushroom is a
A) mycelium. B) hypha. C) spore. D) septum. E) root.
Which of the following statements regarding genetic testing is false?
A) Genetic testing before birth requires the collection of fetal cells. B) Carrier testing helps determine whether a person carries a potentially harmful disorder. C) The screening of newborns can catch inherited disorders right after birth. D) Most human genetic diseases are treatable if caught early.