If two heterozygous tall garden pea plants are crossed, the expected genotypic ratio in their offspring is
Show Hint
- 3 : 1
- 1 : 1
- 1 : 2 : 1
- 1 : 0
The Correct Option is C
Solution and Explanation
Heterozygous tall plants have the genotype \texttt{Tt}. Crossing two such plants: \texttt{Tt × Tt} Step 2: Perform Punnett square analysis. \[ \begin{array}{c|c|c} & T & t
\hline T & TT & Tt
t & Tt & tt
\end{array} \] Step 3: Determine genotypic ratio.
- TT (homozygous tall) = 1
- Tt (heterozygous tall) = 2
- tt (dwarf) = 1 So, genotypic ratio = 1 : 2 : 1
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