Two genes is easy, but how do youdo three genes? I can figure out the distance f

Question

Two genes is easy, but how do youdo three genes? I can figure out the distance from each gene to thecentromere, but I don't know how to figure out the distancesbetween the genes themselves. Normally the equation is:

distance = (0.5TT + NPD)/total and then times by 100 to get the mapunits. But the problem is, if I use this same equation for eachgene, all genes will have the exact same distances. How do I changeit so that they have the correct distances?

If you could provide an example, that would be amazing, or justexplain. Thanks! Two genes is easy, but how do youdo three genes? I can figure out the distance from each gene to thecentromere, but I don't know how to figure out the distancesbetween the genes themselves. Normally the equation is:

distance = (0.5TT + NPD)/total and then times by 100 to get the mapunits. But the problem is, if I use this same equation for eachgene, all genes will have the exact same distances. How do I changeit so that they have the correct distances?

If you could provide an example, that would be amazing, or justexplain. Thanks!

Explanation / Answer

to find the distances between the genes themselves, you need tolook at the rate of crossover between each of the genes. (# crossovers between those two genes / total # ofrecombinants) x 100= map distance

Related Questions

Navigate

• Browse (All)
• Browse T
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.