Mature ovules are classified on the basis of funiculus. If micropyle comes to lie close to funiculus the ovule is termed as
Mature ovules are classified on the basis of funiculus. If micropyle comes to lie close to funiculus the ovule is termed as
The correct option is B Anatropous
Ovules have been separated into six categories based on their shapes:
Orthotropous (Atropous) This is where the body of these ovules is straight so that the chalaza, where the nucellus and integuments merge, the funicle, which attaches the ovule to the placenta and the micropyle are all aligned.
Anatropous In this case, the ovules become completely inverted during development so that the micropyle lies close to the hilum. The hilum is a scar that marks the point where the seed was attached to the fruit wall by the funicle.
Hemi-anatropous The body of these ovules becomes at a right angle in relation to the funicle, so it looks like the ovule is lying on its side.
Campylotropous The body of this type is bent and the alignment between the chalaza and micropyle is lost. The embryo sac is only slightly curved.
Amphitropous The body of the ovule is very much curved that the embryo sac and the ovule itself take the shape of a horseshoe.
Circinotropous The funicle in this case is especially long that it creates a nearly full circle around the ovule whose micropyle is ultimately pointing upwards.
Ovules have been separated into six categories based on their shapes:
Orthotropous (Atropous) This is where the body of these ovules is straight so that the chalaza, where the nucellus and integuments merge, the funicle, which attaches the ovule to the placenta and the micropyle are all aligned.
AnatropousIn this case, the ovules become completely inverted during development so that the micropyle lies close to the hilum. The hilum is a scar that marks the point where the seed was attached to the fruit wall by the funicle.
Hemi-anatropousThe body of these ovules becomes at a right angle in relation to the funicle, so it looks like the ovule is lying on its side.
CampylotropousThe body of this type is bent and the alignment between the chalaza and micropyle is lost. The embryo sac is only slightly curved.
AmphitropousThe body of the ovule is very much curved that the embryo sac and the ovule itself take the shape of a horseshoe.
CircinotropousThe funicle in this case is especially long that it creates a nearly full circle around the ovule whose micropyle is ultimately pointing upwards.
