Molecular Biological Evidence for

1. Molecular Biological Evidence for By Johnny, Abby, and Jackie

2. DNA is a homology that links life on earth to a similar ancestry. All organisms have cells which are filled with protein, lipids, and more. Genes are slightly different in each species, but they have similar characteristics that show their common ancestry. Roundworms share 25% of their genes with humans.

3. Animal and Plant cells are very similar to each other except for 3 structures. Most of the Structures inside both the cells perform the same function.

4. All living things have basic anatomical structures and chemical compositions. They all begin as single cells that reproduce in similar methods, and eventually grow old and die. All can create complex molecules out of carbon and few other elements. All plants and animals receive their specific characteristics from their parents by inheriting particular combinations of genes. Of all of the tens of thousands of types of proteins in living things, they are all made up of only 20 different amino acids. The simple code of DNA is found in all living things.

5. Most living things are alike in that they get the energy needed for growth, repair, and reproduction. They can get this energy from the sun (photosynthesis), or by consuming green plants or other organisms that eat plants.

6. Due to the similarities of these animals’ wings/arms/fin structures, they must have all shared a common ancestor, or came into existence as a similar result of natural process.

7. Amino Acids Amino acids are essentially the same in all organisms. Proteins in all organisms are composed of the same set of 20 amino acids. Unity of composition and function: favor of the common descent of diverse organisms.

8. Hemoglobin Protein that carries oxygen in the blood. 4 chains ~ 2 identical consist of 141 amino acids ~ 2 other identical consist of 146 amino acids

9. Myoglobin Stores oxygen in the muscle tissue till it is needed. One single chain of 153 amino acids Two proteins are found in almost every multicelled animal.

10. Examples Mammals, birds, reptiles, amphibians, fish, and worms. All have the same amino acids so you can form similarities between each other.

11. How does molecular biology provide evidence to evolution? Cells in every species will have the same structures, but they will be very different because of how they adapted their cells to survive.