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DNA, RNA, and DNA Replication
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DNA vs RNA Deoxyribonucleic Acid Double Helix Shaped Forms: Nuclear
Mitochondrial Chromosomal Never leaves Nucleus Contains C,G, A, T Ribonucleic Acid Single Helix Shaped Forms: Messenger Transfer Ribosomal Leaves Nucleus Contains C, G, A, U
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DNA Base Pairing Adenine bonds with Thymine
Cytosine bonds with Guanine A-T or T-A C-G or G-C
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RNA Base Pairing Adenine bonds with Uracil Cytosine bonds with Guanine
A-U or U-A C-G or G-C
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DNA Structure Phosphate Group (PO4) Deoxyribose Sugar
Nitrogen Base Pair
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DNA Structure Mobile Color each part. Cut out the individual pieces.
Glue or paste together. Attach string for individual mobiles. Tape all of the classses together and make a huge strand to hang from ceiling. Attach to cardboard and make a puzzle.
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DNA Replication
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DNA Replication Replication = DNA copies itself exactly
(Occurs within the nucleus) Any mistake in copying = mutation DNA mutation = chromosomal mutation
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Basic Facts of DNA Replication
1. Complementary base pairing makes replication possible C - G A - T
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Basic Facts of DNA Replication
2. One side of DNA molecule is a template for making the other side (strand)
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Process of DNA Replication
Uncoil & unzip DNA molecule Enzyme (-ase) breaks weak Hydrogen Bond between bases
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Process of DNA Replication
2. Enzyme brings in complementary N-bases DNA Replicase
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Process of DNA Replication
3. Insert N-bases DNA Replication Tutorial (Go here for on-your-own learning/review) trc.ucdavis.edu/.../week5/06dnareplication.html
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Replication Movie C - G A - T
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Semi-conservative replication
Each new DNA molecule contains one old strand & one new strand
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DNA vs. RNA DNA RNA Sugar = deoxyribose Sugar = ribose
Double-stranded molecule Single-stranded molecule Thymine bonds with adenine Uracil instead of thymine
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DNA vs. RNA DNA RNA Nuclear DNA Mitochondrial DNA Chromosomal DNA
mRNA = messenger tRNA = transfer rRNA = ribosomal Nuclear DNA never leaves the nucleus Assembled in nucleus, moves to cytoplasm (leaves the nucleus)
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RNA vs. DNA
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QUESTIONS TO KNOW What is the shape of DNA?
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QUESTIONS TO KNOW A Double Helix
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Where is DNA found within the cell?
QUESTIONS TO KNOW Where is DNA found within the cell?
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QUESTIONS TO KNOW In the nucleus only.
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QUESTIONS TO KNOW What is the result of a mistake in the copying portion of DNA replication called?
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QUESTIONS TO KNOW A mutation
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QUESTIONS TO KNOW Cytosine bonds with?
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QUESTIONS TO KNOW Guanine
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Adenine bonds with what in DNA? RNA?
QUESTIONS TO KNOW Adenine bonds with what in DNA? RNA?
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QUESTIONS TO KNOW Thymine Uracil
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QUESTIONS TO KNOW C-T-A-G-G-C-T-T-A-A-C-G-G-T-T-A-C
What is the opposite DNA base pair of: C-T-A-G-G-C-T-T-A-A-C-G-G-T-T-A-C
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QUESTIONS TO KNOW C-T-A-G-G-C-T-T-A-A-C-G-G-T-T-A-C
G-A-T-C-C-G-A-A-T-T-G-C-C-A-A-T-G
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QUESTIONS TO KNOW Which base pair is that of RNA?
1. C-T-A-G-G-C-T-T-A-A-C-G-G-T-T-A-C 2. C-A-U-G-G-C-A-A-U-U-G-C-C-U-U-G 3. G-T-U-C-C-G-T-U-T-U-C-G-G-T-A-C
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QUESTIONS TO KNOW 1. C-T-A-G-G-C-T-T-A-A-C-G-G-T-T-A-C
2. C-A-U-G-G-C-A-A-U-U-G-C-C-U-U-G 3. G-T-U-C-C-G-T-U-T-U-C-G-G-T-A-C
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