TtRr represents (heterozygous tall, heterozygous pink). If this plant is self crossed then (T-dominant, t-recessive, R-dominant, r-recessive)
I. 25%plants have red flowers.
II. 25%plants have white flowers.
IIII. 50%plants have pink flowers.
IV. 50%plants are tall.
Choose the correct option.

on self-crossing TtRr plant, the following cross is obtained
Tt Rr (heterozygous tall and pink)
                                  ↓(self-crossed)
                          Tt Rr x Tt Rr

Plants with pink flower = 8 = 50%
Plants with red flower = 4 = 25%
Plants with white flower = 4 = 25%
Tall plants = 12=75%
Dwarf plants = 4= 25%