A base-pair substitution mutation in a germ cell line is likely to have NO effect on phenotype if the substitution . A. occurs in an intron changes a stop codon to a codon
B. specifying an amino acid changes the structure of an enzyme
C. prevents the initiation of transcription of the DNA
D. sequence that codes for ATP synthase forms a new stop codon

When in solution, a molecule that moves slowly across an artificial membrane moves rapidly across a plasma membrane. this molecule rapidly enters the cell regardless of whether its concentration is higher inside or outside the cell. using this information, which transport mechanism is most likely to be responsible for the movement of the molecule across a plasma membrane? view available hint(s)when in solution, a molecule that moves slowly across an artificial membrane moves rapidly across a plasma membrane. this molecule rapidly enters the cell regardless of whether its concentration is higher inside or outside the cell. using this information, which transport mechanism is most likely to be responsible for the movement of the molecule across a plasma membrane? active transportexocytosis