Topic 1 Mutations

advertisement
Mutations
Mutations: Any change in a
DNA sequence.
Inversions:
Deletions:
Insertions/Duplication
Q’s & Ans Time:
What happens if the mutation is a
reproductive cell?
What happens if the mutation
occurs with a body cell?
What can cause mutations to body
cells?
What are all the possible types of
mutations?
Protection from mutations:
• Sunscreen
• Avoid harmful chemicals
• Avoid excessive x-rays
• ...
Chromosomal Mutations
chromosomes break & rejoin
incorrectly or are lost
Plants suffer the most by
chromosomal mutations
Mutations itself do not
specifically change allele
frequencies. It is however, the
ultimate source of all variation.
Making evolution possible.
Download