Question

What would be the anti codon in the tRNA for the amino acid trp (tryophan)?

Answer 1

How do the genes in our DNA influence our characteristics? For example, how can a gene determine whether a person is an albino with very pale skin and hair? Basically, a gene is a segment of DNA that provides the instructions for making a protein, and proteins influence our characteristics. This chart describes how two different versions of a gene result in two different versions of a protein which in turn can result in either normal skin and hair color or albinism. DNA  Protein  Characteristic   Version of the gene that provides instructions to make normal protein enzyme  Normal enzyme that makes the pigment molecule in skin and hair  Normal skin and hair color Version of the gene that provides instructions to make defective enzyme  Defective enzyme that does not make this pigment molecule  Albinism (very pale skin and hair) A gene directs the synthesis of a protein by a two-step process. The first step is transcription of the gene in the DNA. Transcription produces a messenger RNA (mRNA) molecule. The second step is translation of the mRNA molecule. Translation produces a protein molecule. During transcription, the sequence of nucleotides in a gene in the DNA is copied to a corresponding sequence of nucleotides in mRNA. During translation, the sequence of nucleotides in the mRNA determines the sequence of amino acids in the protein. After translation, the sequence of amino acids in the protein determines the structure and function of the protein. Differences in protein function can influence characteristics such as normal skin and hair color vs. albinism.