Polypeptide

Science / Genetics / Polypeptide: A protein or part of a protein made of a chain of amino acids joined by a peptide bond.

Intron

Science / Biology / Intron: In eukaryotes, bases of a gene transcribed but later excised from the mRNA prior to exporting from the nucleus and subsequent translation of the message into a polypeptide. MORE

Ribosomes

Science / Biology / Ribosomes: Small organelles made of rRNA and protein in the cytoplasm of prokaryotic and eukaryotic cells; aid in the production of proteins on the rough endoplasmic reticulum and ribosome complexes. The site of MORE

Anticodon

Science / Biology / Anticodon: A sequence of three nucleotides on the transfer RNA molecule that recognizes and pairs with a specific codon on a messenger RNA molecule; helps control the sequence of amino acids in a growing polypep MORE

Pepsin

Science / Biology / Pepsin: An enzyme produced from pepsinogen that initiates protein digestion by breaking down protein into large peptide fragments. An enzyme, produced by the stomach, that chemically breaks down peptide bonds MORE

Genes

Science / Biology / Genes: Specific segments of DNA that control cell structure and function; the functional units of inheritance. Sequence of DNA bases usually code for a polypeptide sequence of amino acids. MORE

Exons

Science / Genetics / Exons: Portion of a gene included in the transcript of a gene and survives processing of the rna in the cell nucleus to become part of a spliced messenger of a structural rna in the cell cytoplasm: an exon s MORE

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