RNA is made up of many

nucleotides.
amino acids.
proteins.
DNA molecules


nucleotides.

Biology & Microbiology

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Which airborne pollutant contributes to global warming?

a. carbon dioxide b. ozone c. mercury d. sulfur dioxide e. carbonic acid

Biology & Microbiology

Many restriction enzymes generate ____ on DNA fragments after being cut

a. frank ends b. recombinant ends c. curved ends d. sticky ends e. oblique ends

Biology & Microbiology

The organelle with a flattened channel that begins at the nuclear envelope and passes into the cytoplasm is the ____

a. nucleus b. nuclear membrane c. Golgi body d. endoplasmic reticulum e. lysosome

Biology & Microbiology

Which of the following is NOT part of the peripheral nervous system:

a. the somatic nervous system b. the autonomic nervous system c. nerves branching out from the spinal cord d. the brain

Biology & Microbiology