Biological approach summary notes

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  • Created by: Holly
  • Created on: 14-04-12 11:16

Nature-nurture debate.

The geneotype of an individual is their genetic constitution, essentially what chromosomes make them.
Phenotype is the result of interaction between inherited characteristics and environment.

Nature aspect: what we inherit (genes, brain structure, genetic make-up)
Nurture aspect: environment (upbringing, social influence etc.)

Genetics and inheritance.

Each individual inherits 50% of mothers genes and 50% fathers.
Genes can be seperated into 2 groups.

Dominant genes: always lead to certain characteristic in offspring.
Recessive gene: present in both chromosomes in pair to have characteristic.

If one parent gives 2 copies of chromosome 21, the child will have three resulting in down's…


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