Question

The punnett square shown below represents the pattern of inheritance in dihybrid cross where a plant, true breeding for tallness and green pods is crossed to a plant which is dwarf and yields yellow pods. Assuming that the dominant and recessive allele for tallness and dwarfness is T and t respectively and the dominant and recessive allele for yielding green pods and yellow pods is G and g respectively, study the F1 self cross given below:-
$\begin{array}{ccccc}\text{Gametes}& \text{TG}& \text{Tg}& \text{tG}& \text{tg}\\ \text{TG}& \text{F}& \text{J}& \text{N}& \text{R}\\ \text{Tg}& \text{G}& \text{K}& \text{O}& \text{S}\\ \text{tG}& \text{H}& \text{L}& \text{P}& \text{T}\\ \text{tg}& \text{I}& \text{M}& \text{Q}& \text{U}\end{array}$
A tall plant of type 'H' will produce pods identical to that produced by the tall plant of which of the following types?

• A. Type M
• B. Type S
• C. Type N
• D. Type P

Answer 1

The correct option is C Type N

A plant of type 'H' will produce pods of identical nature to those produced by the plant of type ‘N’. Both of them are tall plants producing green pods. On the contrary, plant under type M and S are tall and they produce yellow colored pods. Plant of the type P are dwarf.