MHT CET 202624 AprilEvening Shift
- Exam
- MHT CET
- Year
- 2026
- Date
- 24 April
- Shift
- Evening Shift
- Subject
- Biology
- Chapter
- Principles of Inheritance and Variation
MHT CET 2026 · 24 April · Evening Shift · Biology · Principles of Inheritance and Variation
Female gametes in a plant have genotypes TR, Tr, tR and tr with...
Female gametes in a plant have genotypes TR, Tr, tR and tr with respect to height (T/t) and flower colour. (R/r). What will be the phenotype of this plant?
Options
- AHeterozygous tall ; Homozygous White (Ttrr).
- BHeterozygous tall; Heterozygous Red (TtRr).
- CHomozygous tall red (TTRR).
- DHomozygous Tall ; Heterozygous Red (TTRr).
Correct answer
B. Heterozygous tall; Heterozygous Red (TtRr).
Step-by-step solution
The gametes produced by the plant are TR, Tr, tR, and tr.
Since the gametes contain both dominant and recessive alleles for both traits (T and t for height, R and r for flower colour), the parent plant must possess all these alleles.
This indicates that the plant is heterozygous for both genes. Thus, the genotype of the plant is TtRr.
The phenotype corresponding to the genotype TtRr is heterozygous tall and heterozygous red.
Answer: Heterozygous tall; Heterozygous Red (TtRr).
Since the gametes contain both dominant and recessive alleles for both traits (T and t for height, R and r for flower colour), the parent plant must possess all these alleles.
This indicates that the plant is heterozygous for both genes. Thus, the genotype of the plant is TtRr.
The phenotype corresponding to the genotype TtRr is heterozygous tall and heterozygous red.
Answer: Heterozygous tall; Heterozygous Red (TtRr).