heterozygous

If the alleles supplied by each parent are different, then the offspring is heterozygous for that trait.

The effects of supplements (primarily methylfolate and methylcobalamin) seems to depend on which mutation C677T, A1298, or both, and whether the person is homozygous or heterozygous.

The idea with lynch is that you are heterozygous for having a working mismatch repair mechanism that corrects certain DNA errors.

So, only some (heterozygous) females in these species typically have full trichromatic vision, while males and the unlucky homozygous females remain dichromatic.

We find that 99.7% of white morphs are heterozygous (n = 1,014; Table S1)...

For example, people in Europe have no incidence of sickle cell disease, a recessive genetic disease that in its heterozygous form grants resistance to malaria.

If one of the receptors is mutated and color-shifted, then women will be homozygous for the wavelengths of two of the three receptors, but heterozygous for the remaining receptor, which gives her two more wavelengths to interpret.

Having homozygosity for the mutation causing SCA leads to a multitude of complications and higher risk of death, but heterozygous humans have a significant increase in resistance to Malaria.

The textbook example is sickle cell anemia: although it is very harmful in homozygous individuals, it confers resistance to malaria without negative side effects in heterozygous individuals, which is beneficial.

By contrast, an individual who is heterozygous for a marker has two different versions of that marker.` In other words, errors can accumulate and are more likely to be expressed.

That maybe heterozygous mutations work too?

> So, only some (heterozygous) females in these species typically have full trichromatic vision Wow that's wild how heterozygousity can be that helpful.

The code is mind bending to read but it’s blazing fast thanks to “compressing” genotypes into two bits (homozygous reference, heterozygous, homozygous alternate, N/A) and implementing all its operations on this 2-bit representation.

From the actual paper [0]: "Our long-term genotypic analysis builds on previous work [6, 7] and, through extensive genotyping of thousands of individuals over more than two decades, confirms that white morphs are almost always heterozygous for alternative chromosome 2 alleles (2m/2).

What I found really interesting was that the answers to some of the other questions on the "Girl Named Florida" discussion required knowledge which I would not have considered general math-ish knowledge: > If the parents have brown hair > and one of their children has red hair, > we know that both parents are heterozygous, > so their chance of having a red-haired girl is 1/8.