Question

Which of the following characters were considered by Morgan for his linkage and crossing over experiments

• A. Body colour
• B. Wing size
• C. Eye colour
• D. Wing colour

Answer 1

Answer: (A), (B), (C)

Eye colour

Morgan explained this concept of linkage and crossing over through his studies on Drosophila. He crossed fruit flies having three (linked) genes (for wing size, eye color and body colour) on the same chromosome and noticed that the recombination frequency differed considerably from the Mendelian principles of independent assortment.