Ribosomes exist either free in the cytoplasm or attached to the membranes of
____________________. What will be an ideal response?
ANS: rough endoplasmic reticulum
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What structure is large enough to be seen through a light microscope?
a. Proteins b. Lipids c. Eukaryotic cells d. Viruses e. DNA
A decrease in cortisol triggers a negative feedback
loop and causes release of a. adrenocorticotropin. b. cortisol. c. corticotropin releasing hormone. d. insulin. e. thyroxine.
A(n) _____infection is an infection that produces no noticeable symptoms even though the microbe is active in the host tissue
Fill in the blank(s) with the appropriate word(s).
DNA studies can be used to suggest genetic relatedness because
A. it is assumed that all members of the same species have the same DNA. B. DNA is easily preserved in fossils. C. mutations are rarely seen in DNA studies. D. it is assumed that recently diverged organisms would have similar DNA.