How many mRNA nucleotides code for one amino acid?
a. One
b. Two
c. Three
d. Six
c. Three
Three mRNA nucleotides code for one amino acid.
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Researchers surgically fuse two of the three ossicles in the inner ear of a mouse, effectively leaving two functional, linked ossicles in place of three. When the mouse's hearing is tested, what outcome would be expected? The mouse would be _____
A) more sensitive to sound, but only in the low-frequency range B) more sensitive to sound, but only in the high-frequency range C) more sensitive to sound in general D) less sensitive to sound in general
Humans acquire infection with Trichinella tissue nematode by ingesting undercooked meat that contains the infective encysted larvae. In which tissue do these larvae encyst?
a. Brain b. Meninges c. Myocardium d. Striated muscle
The smallest functional units of matter that cannot be further broken down by ordinary chemical or physical means are
A. atoms. B. molecules. C. proteins. D. shells. E. bonds.
You have discovered a very small amount of DNA from an ancient organism that you want to save and study. What is the very first thing you should do to allow you to study this DNA in the lab?
A. Polymerase chain reaction (PCR) B. Gel electrophoresis C. Insert the DNA into a vector D. RT-PCR