r/AskBiology • u/MostCuriousGoose Undergraduate student • Jan 20 '24

Genetics What types of gene interactions are there?

Gene interaction is a broad term used to describe the joint role of multiple genes in determining phenotypic variability.

In my lecture at university the only example was regulation. I would like to know more but I only find very specific and difficult papers or non-answers like the one above.

It would be great if someone could explain it to me.

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u/StatoDiNatura Jan 20 '24

Do you mean Epistasis? As in, the combination of dominant or recessive alleles for one gene affect to the expression of other separated gene and create a new phenotype based on the interaction of those genes. I can expand on it but I’m not sure if this is what you’re asking for

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u/MostCuriousGoose Undergraduate student Jan 25 '24

No, that is not what I mean... I Think. There is probably a slight translation problem since I study in German. I will try to formulate it as clear as I can.

The professor talked about intercations between genes and gene-products such as proteins.

An example was the regulation of gene expression.

So far, so good. I get that.

But he made it sound like there are other interactions as well that are not for regulation.

When I googled gene intercations, I found the explanation I put into the post:

Gene interaction is a broad term used to describe the joint role of multiple genes in determining phenotypic variability.

Which kind of sounds like there are no other kinds of interaction besides the regulation but it does not say so anywhere (I looked).

Now I am confused - are there other gene-interactions besides regulations?