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Revision on GENES.

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Presentation on theme: "Revision on GENES."— Presentation transcript:

1 Revision on GENES

2 Activate 2 text book, p

3 Extinction – write down the factors that may have caused extinctions
Fossils – how do they provide evidence for extinction? How can the following prevent extinctions? Captive breeding /conservation /gene banks Write down what the following words mean: Nucleus DNA Chromosome Gene. EXT: How are they related? Describe what a gamete is – how many chromosomes does a gamete have compared to a normal cell – why? What is mutation – what are the advantages and disadvantages Complete a punnet square cross for BB, bb where b=blue e yes and B=brown eyes – which is dominant? Describe what an allele is Who was Charles Darwin and what was his important theory What are the steps for natural selection What is a peer review and why is it important What is adaptation What is the evidence for natural selection What is biodiversity

4 Extinction – write down the factors that may have caused extinctions.
p168 Fossils – how do they provide evidence for extinction? P168 P164 How can the following prevent extinctions? Captive breeding /conservation /gene banks. P Write down what the following words mean: Nucleus DNA Chromosome Gene. EXT: How are they related? P Describe what a gamete is – how many chromosomes does a gamete have compared to a normal cell – why? What is mutation – what are the advantages and disadvantages? P173 Describe what an allele is. P176 Complete a punnet square cross for BB, bb where b=blue e yes and B=brown eyes – which is dominant? P Who was Charles Darwin and what was his important theory? P What are the steps for natural selection? P What is the evidence for natural selection? P165 What is adaptation? What is biodiversity? P What is a peer review and why is it important? P167


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