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CH 11 vocab

TermDefinition
nitrogenous base carbon ring structure that contains one or more atoms of nitrogen
double helix DNA is composed of two strands twisted together
DNA replication DNA in chromosomes is copied
messenger DNA brings instructions from DNA in the nucleus to the cells factory floor, the cytoplasm.
ribosomal RNA binds to the mRNA and uses the instructions to assemble the amino acids in the correct order
transfer RNA delivers amino acids to the ribosome to be assembled into a protein
transcription enzymes make an RNA copy of a portion of a DNA strand
translation process of converting the info in a sequence of nitrogenous bases in mRNA into a sequence of amino acids in a protein
mutation any change in the DNA sequence
point mutation a change in a single base pair in DNA
frameshift mutation a mutation in which a single basis added to or deleted from DNA
chromosomal mutations structional changes in chromosomes
mutagen any agent that can cause a change in DNA
Created by: annawestbrook
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