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DNA, RNA, and DNA Replication

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Presentation on theme: "DNA, RNA, and DNA Replication"— Presentation transcript:

1 DNA, RNA, and DNA Replication

2 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

3 DNA Base Pairing Adenine bonds with Thymine
Cytosine bonds with Guanine A-T or T-A C-G or G-C

4 RNA Base Pairing Adenine bonds with Uracil Cytosine bonds with Guanine
A-U or U-A C-G or G-C

5 DNA Structure Phosphate Group (PO4) Deoxyribose Sugar
Nitrogen Base Pair

6 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.

7 DNA Replication

8 DNA Replication Replication = DNA copies itself exactly
(Occurs within the nucleus) Any mistake in copying = mutation DNA mutation = chromosomal mutation

9 Basic Facts of DNA Replication
1. Complementary base pairing makes replication possible C - G A - T

10 Basic Facts of DNA Replication
2. One side of DNA molecule is a template for making the other side (strand)

11 Process of DNA Replication
Uncoil & unzip DNA molecule Enzyme (-ase) breaks weak Hydrogen Bond between bases

12 Process of DNA Replication
2. Enzyme brings in complementary N-bases DNA Replicase

13 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

14 Replication Movie C - G A - T

15 Semi-conservative replication
Each new DNA molecule contains one old strand & one new strand

16

17 DNA vs. RNA DNA RNA Sugar = deoxyribose Sugar = ribose
Double-stranded molecule Single-stranded molecule Thymine bonds with adenine Uracil instead of thymine

18 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)

19 RNA vs. DNA

20 QUESTIONS TO KNOW What is the shape of DNA?

21 QUESTIONS TO KNOW A Double Helix

22 Where is DNA found within the cell?
QUESTIONS TO KNOW Where is DNA found within the cell?

23 QUESTIONS TO KNOW In the nucleus only.

24 QUESTIONS TO KNOW What is the result of a mistake in the copying portion of DNA replication called?

25 QUESTIONS TO KNOW A mutation

26 QUESTIONS TO KNOW Cytosine bonds with?

27 QUESTIONS TO KNOW Guanine

28 Adenine bonds with what in DNA? RNA?
QUESTIONS TO KNOW Adenine bonds with what in DNA? RNA?

29 QUESTIONS TO KNOW Thymine Uracil

30 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

31 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

32 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

33 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

34 YOU ARE READY TO SUCCEED


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