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Biology

WCHS Biology Chapter 11

WordDefinition
Nitrogenous base A carbon ring structure that contains one or more atoms of nitrogen
Double Helix Two strands of DNA twisted together
DNA replication The process where DNA in the chomosomes is copied
Messenger RNA Brings instructions from DNA in the nucleus to the cell's cytoplasm
Ribosomal RNA Binds to the mRNA and uses the instructions to assemble the amino acids in the correct order.
Transfer RNA The supplier; delivers amino acids to the ribosome to be assembled into a protein
Transcription A process where in the nucleus, enzymes make an RNA strand
Codon A set of nitrogenous bases that represents an amino acid; order of nitrogenous bases in mRNA determines the type and order of amino acids in proteins
Translation The process of converting the information in a sequence of nitrogenous bases in mRNA into a sequence of amino acids in protein
Mutation Any change in the DNA sequence
Point Mutation A change in a sinlge base pair in DNA
Frameshift mutation A mutation in which a single base is added to or deleted from DNA
Chromosomal mutations Mutation that occurs at the chromosome level resulting in changes in the gene distribution to gametes during meisos, caused when parts of chromosomes break off or rejoin incorretly
Mutagen An agent that can cause a change in DNA
Created by: dmoudy
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