What determines the color of western white butterflies?
a. genes alone.
b. the environment alone
c. temperature and genes
d. exposure to sunlight and genes

Based on the data in your tables, did the light-colored moths have a higher or lower survival rate after the industrial revolution?

The empty trna moves off and picks up another matching amino acid from the cytoplasm in the cell. the anticodon of the trna, with its attached amino acid, pairs to the codon of the mrna, which is attached to a ribosome. this sequence is repeated until the ribosome reaches a stop codon on the mrna, which signals the end of protein synthesis. the ribosome forms a peptide bond between the amino acids, and an amino acid chain begins to form. when a second trna with its specific amino acid pairs to the next codon in sequence, the attached amino acid breaks from the first trna and is bonded to the amino acid of the second trna.

In general, characteristics that an organism survive and reproduce become more common in a population over time. what mechanism of evolution cause this change?