Which junction influences the passage of ions and small molecules between cells?
a. gap
b. adhering
c. loose
d. tight
e. plasma
a
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Which of the following may be used as sources of energy by chemolithotrophs?
A. Reduced nitrogen compounds B. Reduced sulfur compounds C. Hydrogen gas D. All of the choices are correct.
Select all of the following that characterize the epiphysis of a long bone.
A. composed of spongy bone B. contains yellow bone marrow C. coated with hyaline cartilage D. blood cells are made here
Huntington's disease (HD) is the model neurodegenerative disease because ________
A) it is monogenic B) only a few analytical approaches have been used to study it C) it is not 100% penetrant D) it does not have a defined set of symptoms and disease progression
The complex of DNA and protein that makes up a eukaryotic chromosome is properly called __________.
Fill in the blank(s) with the appropriate word(s).