Changes

Rats spread the plague, just as [[mosquitoes]] spread [[malaria]].

[[Rats]] spread [[the plague]], just as [[mosquitoes]] spread [[malaria]].

They don't have to "have" the disease to carry it.

They don't have to "have" the disease to carry it.

Rats carry fleas, which bite you and give you the germs. Then you get infected.

Rats carry [[fleas]], which bite you and give you the germs. Then you get infected.

Mosquitoes don't have malaria. They carry an internal parasite which gives you malaria when you get a mosquito bite.

Mosquitoes don't have malaria. They carry an internal [[parasite]] which gives you malaria when you get a mosquito bite.

A '''genetic disease carrier''' is an individual who possesses one copy of a [[allele|mutation]] that causes a disease only when two copies are present. Although carriers not affected by the disease unless the gene is codominant with the "normal" gene, two carriers can produce a child who has the disease.

A '''genetic disease carrier''' is an individual who possesses one copy of a [[allele|mutation]] that causes a disease only when two copies are present. Although carriers not affected by the disease unless the gene is codominant with the "normal" gene, two carriers can produce a child who has the disease.

[[Category:Genetics]]

[[Category:Genetics]]