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BIO Unit 3 Test
| Term | Definition |
|---|---|
| double helix | 3 dimensional structure of DNA |
| ribosome | used to synthesize proteins |
| RNA | carries instructions from the DNA |
| anticodon | three nucleotides in a tRNA molecule |
| tRNA | delivers amino acids to the ribosomes |
| gene | segment of DNA with amino acid codes for protein |
| nucleotide | name for adenine, guanine, cytosine, thymine, and uracil |
| mutation | permanent change in DNA sequence |
| transcription | copying of info from DNA strand to mRNA |
| protein synthesis | making of protein based on order of amino acid |
| DNA | molecule that stores genetic information in all organisms |
| codon | sequence of 3 amino acids |
| complementary | nucleotide pairs |
| amino acids | molecules that form proteins |
| DNA Replication | process where information in DNA is copied to a new molecule |
| rRNA | main component of ribosomes |
| mRNA | carries protein assembly instructions |
| polypeptide | long chain of amino acids |
| translation | conversion of information in mRNA to a protein |
| histone | a protein spool in which DNA is wound |
| karyotype | visual representation of chromosomes in an organism that has been sorted by shape and size |