Let us assume that there are four inbred parents, viz., A, B, C and D. Identify the three-way hybrid from the following cross-combinations:
1. AxB, BxC, and CxD
2. (AxB) x C
3. [AxB] x [CxD] x [BxC]
4. [AxB] x [CxD]
1. AxB, BxC, and CxD
2. (AxB) x C
3. [AxB] x [CxD] x [BxC]
4. [AxB] x [CxD]
Show Hint
- AxB, BxC, and CxD
- (AxB) x C
- [AxB] x [CxD] x [BxC]
- [AxB] x [CxD]
The Correct Option is B
Solution and Explanation
Hybrid cultivars are classified based on the number and arrangement of parental inbred lines crossed.
Step 2: Detailed Explanation:
The definitions of hybrid cross combinations are:
1. Single Cross: Cross between two inbreds $(A \times B)$.
2. Three-Way Cross: Cross between a single cross $F_1$ hybrid and a third unrelated inbred line: $(A \times B) \times C$.
3. Double Cross: Cross between two distinct single cross $F_1$ hybrids: $(A \times B) \times (C \times D)$.
Step 3: Final Answer:
Hence, the three-way hybrid is $(A \times B) \times C$.
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