give reason Recessive allele for flower colour in the
garden pea plant does not produce the
violet pigment.
Answers
In this web lab, students experiment with garden pea plants (Pisum sativum) as did Austrian monk Gregor Mendel (1822-1884). Mendel chose to experiment with peas because they possessed four important qualities:
Peas had been shown to be true-breeding (all offspring will have the same characteristic generation after generation).
Peas exhibit a variety of contrasting traits (purple vs. white flowers; round vs. wrinkled seeds).
The shape of the pea flower protected it from foreign pollen. Peas usually reproduce by self-pollination, in which pollen produced by a flower fertilizes eggs in the same flower.
Pea plants grow quickly and do not require much space.
The traits that Mendel studied are listed below:
Form of ripe seed (R) – smooth or wrinkled
Color of seed albumen (Y) – yellow or green
Color of flower (P) – purple or white
Form of ripe pods (I) – inflated or constricted
Color of unripe pods (G) – green or yellow
Position of flowers (A) – axial or terminal
Length of stem (T) – tall or dwarf