The Causes of Variation
Differences between individuals can be due to their genes, their environment, or a mix of both.
Is a scar an example of genetic or environmental variation?
What is The Causes of Variation?
"Variation is the range of differences in DNA or physical traits among individuals of the same species."
What is meant by variation in a population?
A mutation changes the order of bases in a gene. What may happen next?
Cystic fibrosis is caused by which type of allele?
Choose the correct option to complete the statement. DNA is a polymer forming a ____
Variation Sources
Genetic: Skin colour, eye colour, blood group.
Environmental: Scars, tattoos, accent.
Combined: Weight, height, intelligence (potentials are genetic, actuals are environmental).
Nearly all phenotypes are the result of both genes and the environment.
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