A point mutation results in the incorporation of a new amino acid in a protein. Which structure(s) would most likely result?
A) an incomplete protein that still functions normally
B) an altered protein, which could result in a genetic disease
C) two proteins produced instead of one
D) a protein with no change in function
B
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The type of bond illustrated in Figure 2-2 is:
a. an ionic bond.
b. a polar bond.
c. a single covalent bond.
d. a hydrogen bond.
e. a double covalent bond.
Pepsin converts __________ to __________
a. starch; sugars b. proteins; peptides c. fats; fatty acids and glycerol d. nucleic acids; nucleotides e. peptides; amino acids
The dermal tissue system consists of
A) phloem. B) epidermis. C) xylem. D) parenchyma tissue. E) collenchyma tissue.
A lysosome containing undigested material is called ________.
A. an endosome B. a phagosome C. a coated vesicle D. a residual body