dna structure and replication. 4 types of nitrogen bases: adenine thymine guanine cytosine...

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DNA Structure and Replication

4 types of Nitrogen bases: Adenine

ThymineGuanineCytosine

Deoxyribonucleic acid

How do I write the complimentary DNA strand??

How do I write the complimentary DNA strand??

Remember Chargaff’s Base Pairing Rules??

Adenine (A) pairs with Thymine (T)Guanine (G) pairs with Cytosine (C)

DNA Strand: Complimentary

DNA Strand:TGCGCGTTAAGT

ACGCGCAATTCA

How do you make more DNA?

WHERE DOES DNA REPLCATION OCCUR?

• S Phase occurs during interphase of the cell cycle• Takes place in the nucleus of eukaryotes

How does DNA Replication work?

How does your DNA go from 1 DNA strand 2 identical DNA strands

Matching Cards

= Helicase

= DNA Polymerase

= Complimentary DNA Strand

https://www.youtube.com/watch?v=5qSrmeiWsuc

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