Variation

Variation

• There are two types of variation: genetic variation and environmental variation.
• Variation is a difference amongst a species.
• All plants and animals have characteristics that are in some ways similar to their parents'.
• This is because an organism's characteristics are determined by the genes inherited from their parents.
• These genes are passed on in gametes, from which the offspring develop.
• Most animals and quite a lot of plants get some genes from the mother and some from their father.
• The combining of genes from two parents causes genetic variation- no two of the species are genetically identical other than identical twins.
• Some characteristics are determined only by genes. In animals these include: eye colour, blood group and inherited disorders.
• The environment, including the conditions that organisms live and grow in, also…