question_answer

A pea plant with blue colour flower denoted by BB is cross-breed with a pea plant with white flower denoted by ww.

(a) What is the expected colour of the flowers in their \[{{\mathbf{F}}_{\mathbf{1}}}\] progeny?

(b) What will be the percentage of plants bearing white flower in \[{{\mathbf{F}}_{\mathbf{2}}}\] generation, when the flowers of \[{{\mathbf{F}}_{\mathbf{1}}}\] plants were selfed?

(c) State the expected ratio of the genotype BB and Bw in the \[{{\mathbf{F}}_{\mathbf{2}}}\] progeny.

Answer:

(a) \[{{F}_{1}}\] progeny will have blue coloured flowers as blue is dominant.

(b) On self-pollination in \[{{F}_{2}}\] generation white flowers will be 25%.

(c) Ratio of blue and white in \[{{F}_{2}}\] progeny will be 3:1.