An allele is ____ if its effect masks that of a
____ allele paired with it.
a. recessive; codominant
b. codominant; recessive
c. recessive; dominant
d. dominant; recessive
e. incompletely recessive; dominant
D
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When a drop of food coloring is placed in a container of clear water, the colored dye molecules ____
a. diffuse to a different location by osmosis b. diffuse to a different location by active transport c. concentrate at the top of the container d. diffuse equally throughout the container e. stay at the bottom of the container
Caley, a 30-year-old nurse at Bethson Hospital, is diagnosed with a brain tumor. Caley's doctor presents her with multiple treatment options. Which of the following treatment options is most likely to damage Caley's healthy cells in addition to the cancer cells?
A) Chemotherapy B) Surgery C) Liquid biopsy D) Tyrosine kinase inhibitors
The following structures are found in all
eukaryotic cells EXCEPT
a. cell walls. b. the nucleus. c. plasma membranes. d. Golgi bodies. e. the endoplasmic reticulum
It is thought that viruses may have originated
from cells because
a. of their small size. b. they are pathogens. c. they can only replicate within a host cell. d. they do not have organelles. e. more than one of these