Maximum DNA synthesis during the midproliferative phase of the cycle (i.e. cycle days 8â10) correlates with the maximum number of mitoses in both the stromal and epithelial endometrial cellular elements, as well as with the midproliferative peak of plasma estradiol and nuclear estradiol receptors.
Some defining characteristics of angiosperms include flowers, carpels, and the presence of endosperm, a nutritive substance found in seeds, produced via a second fertilization event. However, some current studies suggest that endosperm is not unique to angiosperms.
6.improved transport tissues in angiosperms (e.g. xylem with vessel elements in angiosperms vs. simplified xylem tracheids in gymnosperms.). 7.angiosperms have âdouble fertilizationâ, while gymnosperms do not. The RHS examiners note that: âCandidates who showed a detailed knowledge of the differences between gymnosperms and angiosperms and were able to compare specific aspects side by side in the table gained higher marks.