Sortase is a protein enzyme of bacteria that
A. directs secretion of proteins across the outer membrane.
B. plays a key role in directing proteins to the periplasm.
C. catalyzes covalent attachment of some surface proteins to peptidoglycan.
D. functions by transporting flagellum proteins to their extracellular site of assembly.
Answer: C
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Boiling is not reliable for sterilization because
A. heat-sensitive instruments may be destroyed. B. heat-resistant endospores are unaffected. C. water boils at a higher temperature at lower altitudes. D. viruses are more sensitive to heat than bacteria.
Mendel's laws
A) do not apply to multifactorial traits. B) apply to multifactorial traits but may be difficult to follow because the genes contribute only partly to a trait. C) operate in some genes that contribute to a multifactorial trait, but not in others. D) apply only to polygenic, but not multifactorial traits.
A woman with type A blood just had her first child. The child, like mother, had type A blood. What are all of the possible blood types of the father?
What will be an ideal response?
A(n) _____________________ is a term given to a macromolecule (large molecule) made up of individual subunits
Fill in the blank(s) with the appropriate word(s).