2. Mitochondria

3. Somatic tissue

7. Bone

9. Bone production

10. Modeling bone

11. Melanocytes Somatic tissue Skin

12. Gametes

15. DNA Deoxyribonucleic acid 1. Nuclear DNA –In nucleus of cell + proteins, form a chromosome –A set of DNA molecules is called a genome. 2. Mitochondrial DNA –In mitochondria Cytoplasmic organelle –Inherited from mother only

16. DNA structure Double helix Basic building block is the nucleotide –phosphate group + deoxyribose + base Bases: adenine, guanine, thymine, cytosine Complementary base pairs: A-T; G-C

17. DNA function 1. replication

18. Backbone does not vary within or between DNA molecules So backbone can be represented by a straight line Replication: Each of the 2 replicated molecules have 1 parent strand (old) and 1 daughter strand (new) Complementary base pairing