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DNA and Genetics101

QuestionAnswer
Describe a brief history of DNA James Watson and Francise Crick concluded that DNA looks like a twisted ladder and that they had discovered the secret of life.
Nucleitides the sub-units of DNA made of... 1. a sugar, deoxyribose 2. a phosphate group 3. 1 of 4 nitrogen-containg base pairs
Nitrogen-Containing Base Pairs Adenosine-Thymine Guimine-Cytosine
DNA Replication 1. The DNA twisted ladder unzips 2. free nucleitides attach to each side of the unzipped DNA 3. 2 new DNA molecules are made
GENE a segment of bases along one side of DNA that carries the code for making a specific code for a protein
codon a set of 3 base pairs in a row that carry the code from a specific amino-acid
RNA ribonucleinc acid 2 types: Messenger RNA (mRNA)AND Transfer RNA (tRNA)
TRANSCRIPTION the gene is copied from the nucleaus and the mRNA copies the gene, codon by codon, then takens the copied genes to the ribosomes
TRANSLATION the gene is read or transfered and made at the ribosomes, tRNA reads the message, codon by codon, and brings it over to the correct amino-acid... THE PROTEIN IS MADE
substitution when a base pair is replaced
mutation a change in the original sequence of DNA bases in a gene, or CHANGE IN A GENE
insersion when an extra base pair is added
deletion a base is removed
Created by: megbrody1
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