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The parents are heterozygous.

The parents are heterozygous. F f. F f. Genotype ratio 1FF:2Ff:1ff Phenotype Ratio 3 freckles:1 no freckles. FF. Ff. Ff. ff. Incomplete dominance – dominance relationship in which there is a blending of traits in the heterozygous.

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The parents are heterozygous.

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  1. The parents are heterozygous. F f F f

  2. Genotype ratio 1FF:2Ff:1ff Phenotype Ratio 3 freckles:1 no freckles FF Ff Ff ff

  3. Incomplete dominance – dominance relationship in which there is a blending of traits in the heterozygous. • Black cat (BB) X White cat (bb)  Grey cat Bb • Codominance- dominance relationship in which both traits show in the offspring. • Black horse (BB) X White horse (WW) roan Black and white hairs on horse (BW)

  4. Males XY Females XX

  5. Blood type A – possible genotype AA or AO • Blood type O- genotype OO • Possible blood type of offspring: A or O A A O A O O O O

  6. Most sex- linked genes are located on the • X chromosome

  7. What theory is most accepted as to how the earth was created? • The BIG BANG!!!!!!! • a theory that the universe began with an explosion of a dense mass of matter and is still expanding from the force of that explosion.

  8. What did Miller and Urey try to demonstrate in their experiment Tested the hypothesis that conditions on the primitive Earth favored chemical reactions that produced organic compounds from simpler inorganic compounds

  9. The first organisms to live on earth were believed to be • Heterotrophic Prokaryotes

  10. The Endosymbotic Theory Several key organelles of eukaryotes originated as symbioses between separate single-celled organisms

  11. Evidence of Evolution • Fossils • Comparative anatomy • Homologous structures • Analogous structures • Vestigial structures • molecular evidence • Comparative Embryology

  12. Homologous Stuctures • Structures that are the same internally but not necessarily the same externally

  13. Embryology- the structure and development of a particular organism Embryos that look similar have a common ancestor

  14. Fossils show that life did not always have the forms that it has now. They shows that different life forms existed in the past, and now no longer exist. Life in the past as evidenced in fossils has progressed in a series of forms that are similar to both earlier and later forms, indicating that heredity is a factor in their emergence.

  15. MY THEORY Charles Darwin

  16. Being the fittest is being the best adapted to survive in an environment.

  17. Ecology is the study of organisms and their environment.

  18. Biosphere • The combined area of the earth that supports life

  19. Most of the energy supply for a food chain comes from

  20. Give an example of a producer • All plants are producers: • Examples- trees, rose bushes, tomato plants etc • Algae & phytoplankton are producers in aquatic systems

  21. Food Web • A. Primary or secondary • B. Increasein Krill • C. Less only 10% is passed from the primary producer • D. One impact could be the extinction of one or more of the organisms in the food web. Many species are very sensitive to temperature change.

  22. Bacteria are the recyclers of the ecosystem.They break down all matter into the basic nutrients to make the nutrients available for other organisms.

  23. Digestive System Diagram • A. Esophagus • B. Gall Bladder • C. Liver • D. Stomach • E. Ignore • F. Pancreas • G. Small Intestine • H. Large Intestine

  24. Nephronfound in the kidney. Used to filter blood and create urine.

  25. The Heart • Left Ventricle F Right Ventricle G • Left Atrium C Right Atrium J • The job of the septum is to separate the oxygenated blood from the deoxygenated blood • Largest artery in the body is the Aorta

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