To recall the important terms that relate to genetics and inheritance (KS4)
Describe the basic structure of DNA
In your own words, explain the following terms
The instructions that tell cells what we look like are carried in these. There are 23 pairs of them in a normal human cell.
These are the units which make up chromosomes. Responsible for inheritance of specific characteristics
These are things like eye colour,
skin colour and hair colour.
They are controlled by genes.
Sperm and egg cells are both this type of cell.
Contain half the amount of DNA of normal diploid cells
When a sperm and egg cell
they produce this.
We use this word to describe
cells which contain the full
complement of genetic
material. In humans this would be
46 chromosomes (23 pairs)
The different versions of genes
Alleles of a given gene are identical (can be either dominant or recessive
Alleles of a given gene are not identical
Where plants and animals with useful or desired traits
are bred together
to produce offspring with those desired traits