Proteins are formed by joining amino acids together into a polymer. A ________ bond joins the amino end of one amino acid with the carboxyl end of another
Fill in the blank(s) with correct word
peptide
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Acetic acid gives vinegar its sour taste. The functional group of this acid is
A. -OH B. -NH2 C. -SH D. -COOH E. -CO
The presence of cytoplasmic membrane-bound organelles is characteristic of ____
a. Archaea only b. Bacteria only c. both Archaea and Bacteria d. neither Archaea nor Bacteria e. Achaea, Bacteria and Eukarya
Following unprotected sex with a guy you met at a party, you are now worried about what you might have been exposed to during this episode. Ten days later, you talk to your doctor about getting an HIV test. What is the doctor's response?
A. HIV infection can be latent and asymptomatic for years, so testing should be postponed until you exhibit symptoms of AIDS. B. It's too soon to detect the antibody produced by your immune system in response to HIV exposure, so a test will come back negative. Wait a few more weeks to be tested. C. The incidence of HIV infection in the United States is at an all-time low level, so transmission was not at all likely, especially after only a single possible exposure. D. The antibiotic that you have been taking for a urinary tract infection will also destroy HIV, so you don't have to worry about an infection.
Advantages to living in a social group for an animal include all of the following EXCEPT
A. help in predator avoidance. B. help raising young. C. spread of illness and parasites. D. group food gathering.