Distance between three genes in a crossbetween neospora

Reference no: EM13529717

How do I determine the distance between three genes in a crossbetween neospora? I am given the genotypes and numbers of the asci(progeny).

I have determined the MII and MI tetrads for each gene (a, b, c). Ihave determined the parental types, non-parental types, andtetratypes. I found the distance from each gene to the centromereby using

(1/2MII)/total and multiplying by 100 to get the map units. Thatpart I understand. But how do I determine the distance, forexample, from a to b? I know that for a cross with two genes I canuse the formula:

((1/2TT)+NPD)/total and multiply by 100 to get map units. But if Iwere to use this formula for three genes, wouldn't I be pluggingthe same TT and NPD numbers into the formula each time? So is therea different equation? Or do these numbers change?

Reference no: EM13529717

Questions Cloud

Define the specific heat of calcium metal : The specific heat of calcium metal is 0.653J/gK. How much heat, in joules, is required to heat a 58.5 gram sample of calcium from -5.2oC to 16.7oC. Enter your answer in scientific notation with no units.

State what is the specific heat of the metal : After the system had reached a steady temperature it was determined that 8.4 grams of ice had melted. What is the specific heat of the metal. The heat of fusion of ice is equal to 333 J/g.

System to make the reaction occurfaster : If enzmes could not be used during a reaction, which ofthe following could be added to a system to make the reaction occurfaster?

Crossing over in prophase one results : Crossing over in Prophase 1 results in which of thefollowing

Distance between three genes in a crossbetween neospora : How do I determine the distance between three genes in a crossbetween neospora? I am given the genotypes and numbers of the asci(progeny).

How are barbituratesprepared : How are barbituratesprepared? Give an example of anSSRI and a tricyclic antidepressant.Plese explain for help forexam

Cross true-breeding red-flowered plants withtrue-breeding : You cross true-breeding red-flowered plants withtrue-breeding, white-flowered plants, and the F1 are allred-flowered plants. The F2, however, occur in a ratio of 9 red : 6pale purple :

Two true-breeding varieties of garden peas are crossed : Two true-breeding varieties of garden peas are crossed. Oneparent had red, axial flowers, and the other had white, terminalflowers. All F1 individuals had red, terminal flowers. If 100 F2offspring were counted, how many of them would you expect to ha..

How is the sucrose-rich phloem saptransported : In vascular plants, how is the sucrose-rich phloem saptransported? Water can enter roots through two pathways, apoplastic andsymplastic routes (see Figure 36.12). How do these pathwaysdiffer?

User Account

All Pages