Question

A plant with yellow flowers (Y Y) is cross bred with a plant with white flowers (y y).
(i) What will be the colour of the flowers of the plants in the F1 generation?
(ii) What percentage of the flowers of F2 generation would be white colour, if the F1 generation plants are self-pollinated?
(iii)Find the ratio of the genotypes Yy and YY in the F2 generation

Answer 1

Answer:

1) yellow

2) 25%

3) 2:1

Explanation:

solve by crossing over with YY and yy as YY is dominant it will express themselves in F1 generation while yy will not and if we to selfing we get the result YY, Yy, Yy, yy