From evolutionary point of view, retention of the female gametophyte with developing young embryo on the parent sporophyte for some time, is first observed in :

Question

Dr. Abubacker · Accepted Answer

[Solution] Retention of the female gametophyte with developing embryo on the parent sporophyte is first seen in heterosporous pteridophytes (e.g. $Selaginella$), a precursor to the seed habit. Answer (3).

Q. From evolutionary point of view, retention of the female gametophyte with developing young embryo on the parent sporophyte for some time, is first observed in :

Explanation

Reviewed by Dr. Abubacker

Want to attempt the full paper?