1. Variation

2. Inherited and Environmental Characteristics
List as many inherited and Environmental characteristics as you can......

3. Where is this information stored?
Genetic information is stored by genes which are arranged on chromosomes:
Section of a chromosome:
Genes for eye colour
Genes for blood group:
Genes for hair colour
Different species have different numbers of chromosomes. Humans have 46 (23 pairs) in every cell.
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5. Sexual reproduction
Sexual reproduction involves two organisms of the same species. Each organism produces a GAMETE.
For example, in animals the gametes are the egg and the sperm:
When the sperm penetrates the egg the egg is fertilised and cells start to reproduce to form a new individual:
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6. In plants, the gametes are the eggSexual reproduction and pollen:
Fertilisation
Any type of sexual reproduction helps a species to become more varied because the offspring inherit characteristics from both parents.
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7. Where are the instructions for building your body found?
How many chromosomes are there in a normal body cell.
What is a gene?
Using a diagram explain how the nuclei of sex cells are made.
How does fertilisation occur in animals and plants? Using diagrams explain how the correct number of chromosomes is re-established.