The middle ear is connected to the upper throat by the __________ tube.
Fill in the blank(s) with the appropriate word(s).
Answer: eustachian
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If the DNA sequence was substantially altered from one of the following, which would prevent the binding of the TATA-binding protein (TBP)?
A) RNA polymerase B) the point where transcription begins C) the promoter D) promoter-proximal elements E) histone acetyl transferases (HATS)
Which vertebrates exhibits a "flow through" respiratory system?
A. mammals B. birds C. amphibians D. fishes E. birds and fishes
When performing gene therapy, DNA can be introduced into human cells by using genetically engineered ____, which
are designed to deliver their genetic material into the cells they infect.
a. sheep cells b. mouse cells c. bacteria d. plasmids e. viruses
A method for sterilizing milk, called ________ treatment, uses 134°C for 1 to 2 seconds.
A. ultra high temperature B. pasteurization C. batch pasteurization D. tyndallization E. flash pasteurization