The gene d controls wing shape in flies and has two alleles: d is wild-type and dominant, and d is recessive and causes flies to have downward pointed wings. the gene e controls eye development and also has two alleles: e is wild-type and dominant, and e is recessive and causes the flies to have small eyes. the two genes are located on the same chromosome. a true-breeding fly with wild-type wings and small eyes was crossed with a true-breeding fly with downward wings and wild-type eyes. all of the f1 progeny had a wild-type phenotype. the recombination frequency between the two genes is 20%. if an f1 individual was test crossed to a ddee fly, what percentage of the progeny would you expect to have the wt phenotype?

10% of progeny would have wild type phenotype

Explanation:

True breeding fly with wild type wings and small eyes: De/De

True breeding fly with downward wings and wild type eyes: dE/dE

Cross between them :  De/De X dE/dE = De/dE ( F1 )

Recombination frequency = 20%

Next cross, De/dE X de/de =

De/de = parental = 40%

dE/de = parental = 40%

DE/de = recombinant = 10%

de/de = recombinant = 10%

The third genotype i.e. one of the recombinant genotypes will have the wild type makeup ( DE/de ) hence 10% of flies would have wild type phenotype.

this protocol provides a detailed procedure for agarose-based ip to purify and enrich the protein of interest.

videntify the dna change shown in the diagram and explain how that change can result in the increased genetic diversity often seen among siblings.identify the dna change shown in the diagram and explain how that change can result in the increased genetic diversity often seen among siblings.