Label the steps of translation that led to gene expression.
_____A peptide bond is created between the first two amino acids formed.
_____Once a protein is formed, the gene for a particular trait is expressed.
______A chain of amino acids is formed, creating a protein.
_______The first codon of mRNA attaches to a the anticodon of tRNA to form a chain of amino acids.
which of them is the 1st threw 4th step
Answers
1st peptide bond is a chemical bond formed between two molecules when the carboxyl group of one molecule reacts with the amino group of the other molecule, releasing a molecule of water (H2O). This is a dehydration synthesis reaction (also known as a condensation reaction), and usually occurs between amino acids.
2nd For a gene to be expressed, a protein will bind to the promoter region, telling the cell to transcribe the DNA into RNA. The messenger RNA will go to a ribosome and provide the directions for translation, or making a protein. If for some reason a gene is not expressed, that trait won't show up.
3rd Proteins consist of one or more chains of amino acids called polypeptides. The sequence of the amino acid chain causes the polypeptide to fold into a shape that is biologically active.
4th At the beginning of translation, the ribosome and a tRNA attach to the mRNA. The tRNA is located in the ribosome's first docking site. This tRNA's anticodon is complementary to the mRNA's initiation codon, where translation starts. The tRNA carries the amino acid that corresponds to that codon.
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