Evidence for Evolution

Area: Embryology

Examples: embryo of pig and human

Pro: best evidence because it is the most fundamental or basic

information

Vocabulary: embryo — early stages of developing plants and animalscomparative embryology — study of

different developing organisms.

Comparative Embryology

Comparative Embryology

Evidence for Evolution

Area: Biochemistry

Examples: amino acid sequence of chimpanzee and human

Con: limited access to amino acids of past organisms

Vocabulary: comparative biochemistry — comparing amino acid sequences of

different organisms

Human (H) Chimp (C)

Chromosome comparison

Human (H)

Chimp (C) Orangutan (O)

Gorilla (G)

Chromosomes of Primates

Amino Acid Sequence for Hemoglobin Molecule

Evidence for Evolution Area: Genetics

Examples: domesticated plants and animals; DNA sequence; mutations

Pro: changes easily seen in domestic plants/animals; gene links for generation after generation documented.

Con: limited access to past DNA

Vocabulary: population — all organisms within a breeding group.

selective breeding — artificial selection of only the most desirable traits to be bred.

Domesticated Plants and Animals

Domesticated Plants and Animals

Domesticated Plants and Animals

cattle cats

Domesticated Plants and Animals

corn

apples