Describes the alleles an individual has for a particular characteristic.

Having 2 different versions of an allele for a characteristic.

Having the same alleles for a characteristic.

The allele seen in the phenotype of a heterozygote.

The allele not seen in the phenotype of a heterozygote.

When the influence of 2 alleles is seen in the phenotype of a heterozygote.

The first generation.

The second generation.

A length of DNA that codes for a polypeptide.

Different forms of a gene.

Having pairs of chromosomes.

Having single chromosomes.

When 2 genes are on the same chromosome.

When a gene is on the X or Y chromosome.

A cross that looks at one characteristic.

A cross that looks at two characteristics.

Used to determine if an individual with a dominant phenotype is heterozygous or homozygous

Genetic illness characterised by non functioning chloride pumps.

Genetic illness that prevents blood clotting.

Genetic illness that causes painful blockages in capillaries called crises.

Examples of sex linked conditions.

Genetic illness that is maintained in populations where malaria is prevalent.