The genes that you inherit from your parents affect your whole life, determining aspects of both your physical appearance and personality.
- Human egg and sperm cells contain 23 single chromosomes.
- Egg and sperms cells combine to make diploid cells containing 23 pairs of chromosomes.
- Each parent cells contributes half of your genetic make-up and determines your sex and other traits.
- In egg and sperm cells, parents provide variants of gene coding for the same proteins, which are known as alleles.
"What happens in mammalian reproduction is that a single copy of each gene is donated by each of the parents, dad and mum."
At the moment when a sperm and an egg combine to create a new life, genetic information is passed on to the new generation.
Which genes you inherit in ...
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