When a pure tall pea plant with green pods is | vedclass

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(C) This is a dihybrid cross involving two traits: height (Tall $T$ vs Dwarf $t$) and pod color (Green $G$ vs Yellow $g$).
Parental generation $(P)$:

Vedclass · Accepted Answer

$12$

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(C) This is a dihybrid cross involving two traits: height (Tall $T$ vs Dwarf $t$) and pod color (Green $G$ vs Yellow $g$).
Parental generation $(P)$: $TTGG$ (Tall, Green) $	imes$ $ttgg$ (Dwarf, Yellow).
$Fg1$ generation: All offspring are $TtGg$ (Tall, Green).
In the $Fg2$ generation, we use the Mendelian dihybrid ratio $9:3:3:1$.
The total number of combinations is $16$.
The trait 'Tall' is dominant. According to the Punnett square, the phenotypes for height are:
- Tall (genotypes $TGg$ and $Tgg$): $9 + 3 = 12$.
- Dwarf (genotypes $ttGg$ and $ttgg$): $3 + 1 = 4$.
Therefore, out of $16$ offspring, $12$ will be tall.

When a pure tall pea plant with green pods is crossed with a dwarf plant with yellow pods, how many $F_2$ offspring out of $16$ will be tall?

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