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March 6 Sci Study

TermDefinition
DNA Located in Nucleus Consists of smaller repeating Nucleotides
Nucleotide Composed of phosphate group ribose (sugar) nitrogen bases (ATCG) joined end to end forming a long chain backbone is alternating sugar and phosphates arrangement of the bases makes up the genetic code
Nitrogen base A-all T-thugs C-carry -Guns A=T C=G
Watson-Crick model Double helix DNA consists of 2 Complementary chains uprights are repeating sugar and phosphates groups rugs are complementary bases bases are held together by weak H-bonds (Unzips) sugar&phosphates are held by strong covalent bonds.
Eukaryotic chromosomes Contain DNA and Protein tightly packed to form chromatin
Chromotin Consists of DNA tightly coiled around proteins called histones
Nucleosome Together, the DNA and histone molecules form a bead-like structure
DNA replication Unzipping free floating new complementary form
RNA Carrie DNA to ribosome to make protein ribose uracil single strand
types mRNA reads code rRNA makes ribosomes tRNA transfers aa to ribosome
Created by: user-1809291
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