The genotype of green-stemmed tomato plants is denoted by GG and that of purple-stemmed tomato plants as gg. When these two plants are crossed :
(i) What colour of stem would you expect in their `F_(1)` progeny?
(ii) Give the percentage of purple-stemmed plant if `F_(1)` plants are self pollinated.
(iii) In what ratio would you find the green and purple colour in the `F_(1)` progeny?

Explanation

(i) Green colour.
(ii) 25%.
(iii) 3:1.