Mitochondria Somatic tissue Bone Bone production.

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Presentation transcript:

Mitochondria

Somatic tissue

Bone

Bone production

Modeling bone

Melanocytes Somatic tissue Skin

Gametes

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

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

DNA function 1. replication

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

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