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.
Basal Angiosperms often show combinations of the following traits: numerous flattened (laminar) stamens with wide filaments; numerous tepals; many separate carpels; aromatic oils (giving them a primative odor); and alternate, spirally arranged leaves.nteresting stuff: Lauraceae are one of the largest basal angiosperm families and are common in tropical forests. One genus, Cassytha, is parasitic and viney, strongly resembling members of the genus Cuscuta (Convolvulaceae: in Asterids) in a striking case of convergent evolution.