Genes & alleles
An allele is a possible variant of a gene
Genotype - what genes you have
Phenotype - what you look like
A person has 46 chromosomes, 23 from their mum, 23 from
their dad
Homozygous - describes a genotype when both alleles for a gene
are the same
Heterozygous - a genotype where two alleles for a gene are
different
An allele is a possible variant of a gene
Genotype - what genes you have
Phenotype - what you look like
A person has 46 chromosomes, 23 from their mum, 23 from
their dad
Homozygous - describes a genotype when both alleles for a gene
are the same
Heterozygous - a genotype where two alleles for a gene are
different
