MHT CET 202622 AprilMorning Shift
- Exam
- MHT CET
- Year
- 2026
- Date
- 22 April
- Shift
- Morning Shift
- Subject
- Biology
- Chapter
- Principles of Inheritance and Variation
MHT CET 2026 · 22 April · Morning Shift · Biology · Principles of Inheritance and Variation
Morgan carried out several dihybrid crosses in Drosophila . Which...
Morgan carried out several dihybrid crosses in Drosophila. Which one of the following crosses helped him find the sex-linked inheritance?
Options
- AYellow-bodied, white-eyed female with the wild type with brown-bodied, red-eyed male.
- BYellow-bodied, red-eyed female with yellow-bodied, white-eyed male.
- CBrown-bodied, white-eyed male with yellow-bodied white-eyed female.
- DYellow-bodied, red-eyed male with white-bodied, white-eyed female.
Correct answer
A. Yellow-bodied, white-eyed female with the wild type with brown-bodied, red-eyed male.
Step-by-step solution
Morgan carried out several dihybrid crosses in Drosophila to study genes that were sex-linked. The crosses were similar to the dihybrid crosses carried out by Mendel in peas.
Morgan hybridized yellow-bodied, white-eyed females to brown-bodied, red-eyed males (wild type) and intercrossed their F1 progeny. He observed that the two genes did not segregate independently of each other and the F2 ratio deviated very significantly from the expected ratio. This cross helped him establish the concept of sex-linked inheritance and linkage.
Answer: Yellow-bodied, white-eyed female with the wild type with brown-bodied, red-eyed male.
Morgan hybridized yellow-bodied, white-eyed females to brown-bodied, red-eyed males (wild type) and intercrossed their F1 progeny. He observed that the two genes did not segregate independently of each other and the F2 ratio deviated very significantly from the expected ratio. This cross helped him establish the concept of sex-linked inheritance and linkage.
Answer: Yellow-bodied, white-eyed female with the wild type with brown-bodied, red-eyed male.