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chapter 8 vocab
DNA and GENES
Term | Definition |
---|---|
nucleotides | small unit that make up DNA. |
double helix | model in which 2 strands of DNA wind around like a twisted latter |
base pairing rules | the base of the 2 DNA strands |
replication | DNA is copied during the cell cycle |
DNA polymerases | bond the new nucleotides together |
central dodma | molecular biology, which states the information flows in one direction |
RNA | is a chain of nucleotides, each made of sugar, a phosphate group, aand a nitrogen - containing base |
transcription | is the process of copying a sequence |
RNA polymerases | enzymes that bod nucleotides together in a chain to make a new molecule |
Messenger RNA | is an intermediate message that is translated to form a protein |
Ribosomal RNA | forms part of ribosomes, a cells protein factories |
Transfer RNA | brings amino acids from the cytoplasm to a ribosome to help make the growing protein |
Translation | is the process that coverts , or translate, an mRNA message into a polypeptide |
Stop Condons | signal the end of the amino acid chain |
Start Condon | which signals the start of translation and the amino acid methionine |
anticondon | is a set of three nucleotides that is complmentary to an mRNA condon |