Chapter 11-DNA And Genes Flashcards
Double helix
Shape of DNA molecules formed when 2 twisted DNA strands are coiled into a springlike structure and held together by hydrogen bonds between the bases
DNA replication
DNA in the chromosomes is copied in this process
Nitrogenous base
A carbon ring structure that contains one or more atoms of nitrogen
Codon
Set of 3 nitrogenous bases that represents an amino acid
Messenger RNA
Brings instructions from DNA in the nucleus to the cells factory floor, the cytoplasm. Transcription
Ribosomal RNA
Binds to the mRNA and uses the instructions to assemble the amino acids in the correct order
Transport/er RNA
The supplier. Translation
Transcription
In the nucleus, enzymes make an RNA copy of a portion of a DNA strand in this process
Translation
The process of converting the info in a sequence of nitrogenous bases in mRNA into a sequence of amino acids in protein