A gene that affects, prevents, or masks the expression of a gene at another locus is a(n) __________
gene.
a. recessive
b. dominant
c. epistatic
d. codominant
e. plieotropic
C
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Which of the following properties of water can explain these observations?
While fishing, you make the following observations: a. Water spiders appear to be able walk on the surface of the water. b. Flat rocks may be made to skip across the water. A) Water is an excellent solvent. B) Water molecules are heavy. C) Water molecules are cohesive. D) Water molecules are polar. E) Both B and C
The precursor digestive enzyme secreted by the stomach is ____
a. pepsinogen b. amylase c. HCl d. pepsin e. gastrin
What is the underlying reason that a lambda phage would need to switch from the lysogenic state to the lytic state?
A) To have its genome replicated B) To kill its host cell C) To make more of the Cro protein D) To be more efficient in its use of resources E) To escape an endangered host cell
After sterilizing your inoculating loop with the microincinerator,
A) It is ok to touch the loop. B) You should lay it down on the bench to free up your hands. C) You should let it cool for several seconds before you dip it in the broth culture. D) You should immediately dip it in the broth culture before it becomes contaminated.