IB Biology HL 3.2.20 Recombinants Question Bank
Practise IB Biology HL 3.2.20 by applying recombinants concepts to exam-style questions.
- Syllabus
- First assessment 2025
- Course
- Biology HL
- Level
- HL
Practise IB Biology HL 3.2.20 by applying recombinants concepts to exam-style questions.
The diagram shows one of Thomas Hunt Morgan's crosses of Drosophila in the early 20th century.

Identify the recombinants.
grey vestigial and black normal
Marking guidance:
Accept Ggvv and ggVv or alternative acceptable upper/lower case genotypes.