Composite endosperm - variants of endosperm, Biology

Assignment Help:

Composite Endosperm - Variants of Endosperm

In the family Loranthaceae, the development of endosperm is unique. The ovary lacks ovules. The sporogenous tissue located at the base of ovary develops several embryo sacs which elongate considerably, some of them even entering the style. After fertilization, the primary endosperm nucleus of each embryo sac moves to the basal part where it divides to form cellular endosperm. During further development, the endosperms of all the embryo sacs in an ovary enlarge and become fused to produce a composite endosperm mass. Several proembryos belonging to individual embryo sacs with long suspensors develop but only one survives and attains maturity.


Related Discussions:- Composite endosperm - variants of endosperm

Hlstory of psychiatry, HlSTORY OF PSYCHIATRY: The earliest treatment o...

HlSTORY OF PSYCHIATRY: The earliest treatment of  mental disorders was practiced by stone age cave dwellers. For certain mental disorders,  the early Shaman or medicine man, t

What the henderson-hasselbalch equation expresses, The Henderson-Hasselbalc...

The Henderson-Hasselbalch equation expresses the pH of a solution as: Select one: a. The equilibrium constant of the acid and the dissociated form of the weak acid. b. The

Explain cardiac examination auscultation and its techniques, Explain cardia...

Explain cardiac examination auscultation and its techniques? Auscultation of the heart sound and associatcd sound is very important to diagnose the cardiovascular diseases. It

Explain the corpus callosum, Right-handed adult patient X with a complete t...

Right-handed adult patient X with a complete transection of the corpus callosum is presented with a simple written question in X's right visual field. A barrier is positioned so th

Explain normal nutrition - a base of therapeutic diet, Normal nutrition: a ...

Normal nutrition: a base of therapeutic diet Normal nutrition is the foundation upon which the  therapeutic modifications are based. The primary principle of diet nutrition the

Study of embryology, Embryology This is the study of growth, fertilizatio...

Embryology This is the study of growth, fertilization, division or differential of the zygote into embryo of early development of living beings before the attainment of structure

frog, what is the xternal & internal respiration in fro

what is the xternal & internal respiration in frog

Taxonomy, A In taxonomy, what is a "KEY" ? List the different types of key...

A In taxonomy, what is a "KEY" ? List the different types of keys. How are they prepared and what are they used for ?sk question #Minimum 100 words accepted#

Risk analysis - in-vitro studies, In-vitro studies Mechanistic  data mi...

In-vitro studies Mechanistic  data might be  supplemented by  data  from in-vitro  studies, like  as information on genotoxicity derived from reversion assays or other same ass

Responding variable, what is the responding variable in catalyst to change ...

what is the responding variable in catalyst to change oil molecules

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd