Question

Question 13 6 pts You suspect that the gene locus for fly bristle color and body striping are linked, but are not sure. You calculate a chi square value using a null hypothesis of independent assortment and find the chi square value to be greater than the critical value and so reject the null. Given the data below, what is the map distance between these two genes? Wild type (dominant for both traits): 350 Variegated: 63 Colorless: 57 Variegated and colorless: 330 O 0.85 map units 015 map units O 1.5 map units o 25 map units

Answer 1

To find out the map distance first of we will have to find out the recombination percentage of the given traits

Given:-

Total No. of recombinant offsprings=63+57=120

Total no of Springs=350+63+57+330=800

So % recombinants=(120÷800)×100

= 15%

And,as we know that the 1% is equal to 1 map unit

So,