Tyrosine and tryptophan are less hydrophobic than phenylalanine because . Tyrosine and tryptophan are less hydrophobic than phenylalanine because . Phenylalanine has an indole group Phenylalanine is a phenol Tyrosine and tryptophan have smaller R groups Phenylalanine has no polar group in the side chain

Phenylalanine has no polar group in the side chain

Explanation:

Unlike phenylanine with a nonpolar methyl benzyl group in its side chain, tryptothan and tyrosine on the other hand possesses a polar indole ring and hydroxyl group in their side chain respectively, which helps them form hydrogen bonds with water molecules.

Thus, both are less hydrophobic (water-hating) than phenylanine.

•there must be variation for the particular trait within a population.

•the variation must be inheritable (that is, it must be capable of being passed on from the parents to their offspring).

•individuals with one version of the trait must produce more offspring than those with a different version of the trait.good

explanation: