Variation Mutations & Mixing.

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Presentation transcript:

Variation Mutations & Mixing

Mutation Videos

Mutations during DNA Replication Part of a chromosome (e.g. a gene) Point Mutations Deletions Insertions Chromosomal Mutations (e.g. many genes) Deletions Duplications Inversions Translocations

Meiosis Video

Mixing during Meiosis Crossing Over Independent Segregation Independent Assortment Fertilisation

Discussion Questions Which type of cell division results in mutations being inherited? Why? How do we know whether a mutation is harmful, silent or beneficial? Why aren’t fraternal twins identical?