Identification of various mutant type of drosophila through micro –Photograph

Identification of various mutant type of drosophila through micro –Photograph

1.   Based on Wings Structures

These are normal fruit flies.

 1.   These flies with vestigial wings cannot fly.

2.   These flies have a recessive mutation. Of the pair of vestigial genes carried by each fly (one from each parent), both have to be altered to produce the abnormal wing shape.

1. These flies have curled wings.
2. They have a defect in their "curly gene," which is on the second chromosome.
3. Having curled wings is a dominant mutation, which means that only one copy of the gene has to be altered to produce the defect. 

 

 

2.   Based on Body structure

The normal fruit flies, or "wildtypes," have black-and-tan striped bodies.

1.   These flies have a dark, almost black, body.

2.   They carry a defect in their "ebony gene," on the third chromosome. 

1. These flies are yellower than normal flies.

2. They have a defect in their "yellow gene," which is on the X chromosome