First slide

Gene interactions

Question

Which type of gene interaction is seen in flower colour of Lathyrus odoratus?

Moderate

A

Supplementary gene interaction.
B

Complementary gene interaction.
C

Dominant epistasis.
D

Recessive epistasis.

Solution

Lathyrus odoratus is sweet pea which has purple and white coloured flowers. The flower colour of Lathyrus odoratus as observed in the F₂ generation is 9(purple):7(white). Flower colour of Lathyrus odoratus is an example of complementary gene interaction.

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