Put the following events describing the process of mRNA degradation by miRNA in sequential order.

1 the mRNA is degraded or translation of the mRNA is halted
2 an enzyme, Dicer, cleaves the precursor miRNA in small fragments
3 miRNA binds to the mRNA
4 one strand of the miRNA binds a protein complex, the other strand is degraded
5 a precursor miRNA forms a hairpin loop
Select one:

a. 3, 2, 4, 5, 1
b. 2, 5, 4, 1, 3
c. 5, 4, 2, 1, 3
d. 2, 5, 4, 3, 1
e. 5, 2, 4, 3, 1

How do antiviral drugs work? in your own words.

The pharynx is the structure in the body that serves as a pathway of both air and food. how does the body make sure that food does not get into the lungs? the salivary glands secrete enzymes that pull food out of the air pathway. the small intestine pushes the air out of the digestive system. the pancreas breaks down food in the air pathway. the epiglottis closes the air pathway so that food will not enter it.

Humans are believed to have evolved in coastal regions in east africa. the region had an abundant supply of fish for early humanoids to eat. when scientists analyze the fads gene they see an interesting pattern. people whose families have lived in this area of east africa for generation show a high level of diversity in alleles for the fads gene. conversely, people whose families had migrated inland a moderate distance from sources of fish showed a much lower diversity for fads gene alleles. additionally, the fads alleles found in people whose family has lived inland for generation are almost all gene alleles which produce fads proteins with a high level of function and activity. how do anthropologists explain this?