Reproduction in OrganismHard
Question
What type of placentation is seen in sweet pea ?
Options
A.Basal
B.Axile
C.Free central
D.Marginal
Solution
In sweet pea (Pisum sativum), yhe placentation is marginal, in which the placenta develops alpng the junction of two carpels in a unilocular ovary.
In basal placentation , the ovules are few or reduced to one and are borne at the base of overy, eg, Compositae.
In axile placentation , margins of carpels fold inwards, fusing together in centre of ovary to form a single central placenta. Ovary is divided into as many locules, as there are acrpels eg, Hilbiscus, Asphodelsu. Free-central placentation possesses a placenta arises as a central upgrowth from ovary base eg, Stellaria.
In basal placentation , the ovules are few or reduced to one and are borne at the base of overy, eg, Compositae.
In axile placentation , margins of carpels fold inwards, fusing together in centre of ovary to form a single central placenta. Ovary is divided into as many locules, as there are acrpels eg, Hilbiscus, Asphodelsu. Free-central placentation possesses a placenta arises as a central upgrowth from ovary base eg, Stellaria.
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