James watson’s discovery of the base pairings in the dna helix was a result of trial and error. he discovered that adenine pairs with thymine and that guanine pairs with cytosine after he continually attempted to align models of the bases in other combinations. which best describes how this example illustrates creativity? a. watson’s trial-and-error approach shows that he had run out of other ideas to try in searching for the answer. b. watson’s trial-and-error approach shows that he was using the process of elimination to solve his base pair problem. c. watson’s trial-and-error approach shows that he

Which of the following protists gets nutrients mainly by absorbing molecules from other organisms through their cell walls and cell membranes? a. amoebas b. water molds c. ciliates d. slime molds

What is the difference between an igneous, sedimentary and metamorphic rock

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.