A scientist is trying to determine the relationship between clams, snails and squid. When she generates a molecular close, she is surprised to see that clams and squid are more closely related and clams and snails. Which did the molecular clock data show?

Which of the following statements is true regarding a basic amino acid? a.) the hydrophilic r group of a basic amino acid will be located on the interior of a protein b.) the positively charged r group of a basic amino acid could bind dna c.) the r group of a basic amino acid would only be able to form covalent bonds with other molecules d.) a basic amino acid would be considered both polar and hydrophobic e.) all of the above