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DNA Replication
Biology Vocabulary
Term | Definition |
---|---|
Translation | process of converting info in mRNA into sequence of amino acids in a protein |
Transcription | process in cell nucleus where enzymes make RNA copy of a DNA strand |
Double Helix | shape of DNA molecule formed when two twisted DNA strands are coiled into springlike structure and held together by hydrogen bonds between the bases |
DNA | the genetic info that determines an organisms traits |
Protein | |
Nitrogen Base | carbon ring structure containing 1 or more atoms of nitrogen; includes adenine, thymine, cytosine, guanine, uracil |
Codon | set of nitrogen bases that represents an amino acids |
DNA Replication | process in which chromosomal DNA is copied before mitosis or meiosis |
Purine | double ring bases: adenine and guanine |
Pyrimidine | smaller than purines, they are single ring bases: thymine and cytosine |
Nucleotide | subunits of nucleic acid formed from a simple sugar, phosphate group, and nitrogen base |
Semi-Conservative | DNA splits into two; makes new complete set with another half strand; now has half and half old strands |
RNA | nucleic acid that is single stranded; sugar contained is ribose; contains uracil |
Chargoff's Rule | Adenine=Thymine Guanine=Cytosine |
Ribosome | non-membrane bound organelles in the nucleus where enzymes and other proteins are assembled |
Mutation | any change or random error in a DNA sequence |
Deoxyribose | sugar found in DNA |
Ribose | sugar found in RNA |
Amino Acid | basic building blocks of protein molecules |