This is the principal protein component of skin.
a. Keratin
b. Hemoglobin
c. Actin
d. Insulin
e. Pepsin
Ans: a. Keratin
Biology & Microbiology
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A polypeptide chain is composed of:
a. amino acids b. proteins c. nucleic acids d. fatty acids e. monosaccharides
Biology & Microbiology
Cytoplasmic inheritance refers to genes found in
a. sex chromosomes. b. mitochondria and chloroplasts. c. viruses. d. bacteria. e. only one parent.
Biology & Microbiology
The yeasts, common molds, morels, and truffles are common and economically important and also found in the group of fungi called ___________.
Fill in the blank(s) with the appropriate word(s).
Biology & Microbiology
How many turns of the Krebs cycle are needed to completely break down one molecule of glucose?
A) one B) two C) four D) three
Biology & Microbiology