Answer the questions ticked.
e) A homozygous tall plant (T) bearing red coloured flowers (R) is crossed with a Homozygous dwarf (t) plant bearing white flower (r)
i. Give the genetype and phenotype of the F1 , generation.
ii. Mention the possible combination of gametes that can be formed from the F1, hybrid plant.
iii. List the phenotype of the offsprings of the F2 generation
Please find below the solution to the asked query
Parents TTRR ( Tall Red) X ttrr (Dwarf White)
Gametes TR tr
- F1 Genotype = TtRr
- F1 phenotype = Tall plants with red flowers
(B). Possible type of gametes from F1 hybrids are TR, Tr, tR, tr
(C). Dihybrid cross by selfing F1 hybrids (F2 generation cross)
TtRr X TtRr
Phenotypic ratio: 9:3:3:1
9: Tall and Red
3: Dwarf and Red
3: Tall and white
1: White and DwarfHope this information will clear your doubts about the cross between homozygous tall and red plant with homozygous dwarf and white plant.
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