Q. Heterozygotic tall plant (Tt) is crossed with homozygous dwarf (tt) plant. Then what will be the percentage of dwarf plants in the next generation ? 

Q. Heterozygotic tall plant (Tt) is crossed with homozygous dwarf (tt) plant. Then what will be the percentage of dwarf plants in the next generation ? 

(a) 0%

(b) 50%

(c) 25%

(d) 100%

Solution :

Correct option : B A heterozygous tall plant(Tt) is crossed with homozygous dwarf plant(tt). In the next generation 50% of heterozygous tall plants and 50% of homozygous dwarf plants are formed. It is called Test cross. So, the correct option is ‘50%’.