H2 Biology Core 4 - Natural Selection and Speciation

What you will learn

• Names the sources of heritable variation: gene mutation, meiosis (crossing over and independent assortment), and random fertilisation.
• Walks through the four conditions for natural selection: variation, overproduction, differential survival, and inheritance of advantageous alleles.
• Summarises evidence lines: fossil transitional forms like Archaeopteryx, homologous structures such as the pentadactyl limb, and DNA or protein sequence similarity.