What is the optimal ph to seperate a mixture of lysine, arginine, and cytesine using electrophoresis

The model illustrates a process by which a substance is taken up by a cell

Aboy jumps into a cold swimming pool and his body tempature goes down hus muscles ,blood vessels

Aparent with freckles is crossed with a parent without freckles. the punnett square shows the possible genotypes and phenotypes of the offspring. which statement accurately describes the probability of phenotypes? a.the offspring are more likely to have freckles. b.the offspring are more likely to have no freckles. c.the likelihood of the offspring having freckles and not having freckles is the same. d.the likelihood of the offspring having freckles and not having freckles cannot be determined.