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DNA

DNA Notes

TermDefinition
Genes Units of genetic material that codes for a specific trait
DNA and RNA are examples of Nucleic Acids
DNA is made up of Repeating molecules called Nucleotides (building blocks)
Nucleotide consists of three different structures 1) Phosphate group 2) Sugar Deoxyribose 3) Nitrogenous Base
DNA Structure Is called DOUBLE HELIX
DOUBLE HELIX was discovered by 3 scientist 1)Fredrick Griffith 2) Rosalind Franklin 3) Watson and Crick
DNA had specific pairing between nitrogen Bases Adenine... Thymine Cytosine....Guanine
DNA is made of 2 long strands of Nucleotides arranged in a specific way Complementary Rule
Purines: Adenine Guanine
Pyrimidine's Thymine Cytosine
Adenine must pair with Thymine
Guanine must pair with Cytosine
Different arrangements of Nucleotides in a nucleic acid DNA provides Key to DIVERSITY among living organism
The Code of the Chromosome the specific order that bases occur.
Chromosomes DNA is wrapped tightly around histones and coiled tightly
DNA is replicated to prepare for a cell division During phase of a cell lifecycle.
Nucleus of the cell occurs during DNA replication
Template Each strand of the original DNA serves as a template for the new strand.
DNA Molecule Will produce 2 identical new complementary strands at the completion of DNA replication.
Enzyme Helicase Breaks the hydrogen bonds connecting the complimentary bases of the original DNA molecule.
Enzyme DNA Polymerase binds the new nucleotides to the original strand and proof reads for mistakes in pairing
Helicase is doing this The DNA molecule and allows for new complimentary nucleotides to match up with the nucleotides of the original template
Created by: spotsville2