1. ORIGIN OF SPECIES Chapter 24 2. Speciation• Speciation - Origin ofnew species• Two models:– Anagenesis– Cladogenesis• Micro v. Macro evolution– Micro – changes…

Slide 1 Figure 24.0 A Galápagos Islands tortoise Slide 2 Figure 24.1 Two patterns of speciation Slide 3 Figure 24.2a The biological species concept is based on interfertility…

GENE EXPRESSION: Individuality and Expression HOW DOES DNA KNOW WHEN TO MAKE A PROTEIN? Genes: The Video Clip DNA and Individuality Are all genes turned on in all cells?…

Mutations in DNA Mutations in DNA Mutations A mutation is a change in a DNA sequence. Can happen if There is a mistake in replication. Bases change spontaneously due to random…

Mutations in DNA Mutations in DNA Mutations A mutation is a change in a DNA sequence. Can happen if There is a mistake in replication. Bases change spontaneously due to random…

Mutations in DNA Mutations in DNA Mutations A mutation is a change in a DNA sequence. Can happen if There is a mistake in replication. Bases change spontaneously due to random…