Which of the following developmental periods is the shortest?
a. embryo stage
b. fetus stage
c. neonatal stage
d. infancy stage
c. neonatal stage
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Due to exposure to a chemical, a compound other than the correct structure #3 has been inserted into the DNA strand during replication. This could result in
A) blocking mitotic division of the cells. B) changing the protein coded for by the DNA segment. C) inhibiting the cells from performing cell respiration. D) preventing the cell from making ATP. E) making the enzyme DNA polymerase.
Glycogen is a complex carbohydrate that we get directly by eating plants
Indicate whether the statement is true or false
The plasma membrane:
a. is composed mostly of lipid molecules b. is composed mostly of protein molecules c. allows the ICF and ECF to easily exchange materials d. is a barrier that prevents most molecules from passing through e. is a very thick structure relative to the size of the cell
The amino acids carried by the transfer RNA are joined by
ionic bonds. covalent bonds. polar bonds. peptide bonds. nonpolar bonds.