Replication_Notes

__DNA Replication__ 1. Replication occurs when one double-sided strand of DNA becomes two double-sided strands. 2. The shape of DNA is a twisted ladder. 3. Two nitrogenous bases make up each step of the ladder. 4. Two complementary pairs of bases make up each “step” of the DNA “ladder”. Adenine pairs with thymine. AT or TA Cytosine pairs with Guanine. CG or GC 5. During replication, the two sides of a DNA strand separate and two new strands form by complementary pairs being added to each side of the split. 6. Replication 1st. The DNA unzips making two single strands. 2nd. Free bases are added to their complimentary bases forming new double strands. 3rd. The bases are connected to form the new sides. 7. Write a new side of bases for this half strand of DNA using the idea of complementary base pairs. C-C-A-G-T-A-G-T-T-G-A-C