Black is dominant over white in the coat color of guinea pigs. Assume that a cross is made between a hybrid male black guinea pig (Bb) and a hybrid female black guinea pig (Bb). B = gene for black; b = gene for white.

What fraction of the guinea pigs have black coats?

1/4
1/2
3/4
all

Why are scientists concerned about the depletion of the ozone levels in the stratosphere?

Categorize each term as something that is typical of a scientific theory, a scientific hypothesis, or both. makes predictions

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.