biological approach- genotype and phenotype Flashcards
(7 cards)
what are the 6 AO1 points you must know for genotypes and phenotypes?
- Definition of genotype
-Definition of phenotype - Genotype influences behaviour
-Environmental impact on phenotype
-Gene-environment interaction - Examples in research
What is the genotype?
The genetic makeup of an individual, inherited from both parents, which forms the basis for physical and behavioural traits.
What is the phenotype?
The observable expression of an individual’s genotype, shaped by both genetics and the environment.
How does the genotype influence behaviour?
The genotype can predispose individuals to mental health conditions like schizophrenia or depression through genetic factors.
How does the environment affect phenotype?
Environmental factors, like education, can influence how genetic traits (from the genotype) are expressed, affecting the phenotype.
What is gene-environment interaction?
Genes influence how a person responds to their environment, and environmental factors can impact how genes are expressed, shaping the phenotype.
How are genotype and phenotype studied in research?
Twin and adoption studies show how genetic similarities (genotype) contribute to behaviour, while environmental differences shape the phenotype.