Bio 1 - evolution

Question 1

Whale example of evolution

Answer 1

Example of fossil record. Developed from an animal with hind legs, that became progressively smaller as they were not useful in water.

Question 2

Phylogeny

Answer 2

Study of relationships of organisms. Phylogenetic tree explaining evolutionary relationships.

Question 3

Horse example

Answer 3

The single big toe has evolved from an animal with multiple toes

Question 4

Hox genes

Answer 4

Genes that establish segment identity and control the body plan for an animal

Question 5

Example of vestigial structures in whales

Answer 5

Vestigial pelvis

Question 6

Example of homology

Answer 6

Fore-limbs (human, cat, horse, porpoise, bat)

Question 7

Molecular examples in support for evolution

Answer 7

Hox genes, universal genetic code, all living things do glycolysis, transcription/translation