Customer Service Chat
Get quote & make Payment
Embryo-sac is formed from megaspore mother cell.
In embro-sac, there are 7 cells arranged in 3 groups. The 7 cells are one egg (female gamete), 2 synergids, one central cell (secondary nucleus) and 3 antipodals.
All the cells except secondary nucleus are in haploid condition (n) secondary nucleus is diploid (2n)
The synergids are also known as helper cells. These cells direct the growth of pollen tube towards the egg. They have beak like structure and are situated near the micropylar end.
The 3 antipodals live only for a short duration. They are situated near the chalazal end of the embryo-sac.
Posted Date: 8/29/2012 6:26:20 AM | Location : United States
Ask an Expert
Embryo-sac, Assignment Help, Ask Question on Embryo-sac, Get Answer, Expert's Help, Embryo-sac Discussions
Write discussion on Embryo-sac
Your posts are moderated
Write your message here..
Phylum colentrata, In phylum colenterata if tissues are present in the body...
In phylum colenterata if tissues are present in the body of an organism then why organs are not present as group of tissues makes an organuestion..
Explain the rotary dryers, Explain the Rotary Dryers? Rotary dryers are...
Explain the Rotary Dryers? Rotary dryers are widely used to dry relatively large throughputs of granular products and by products in a number of industries, including the food
Removal of testis, REMOVAL OF TESTIS - It is male hypogonadism. (1 ...
REMOVAL OF TESTIS - It is male hypogonadism. (1 ) BEFORE PUBERTY - Cestration before puberty results in permanent sterility. This condition is eunuchoidism & shows the
What is oxidation and reduction, What is Oxidation and Reduction? Oxid...
What is Oxidation and Reduction? Oxidation and Reduction : Most people are familiar with oxidation as it pertains to the rusting of metals. Oxygen grabs electrons from iron
Common features of eye and limb development, Common Features of Eye and Lim...
Common Features of Eye and Limb Development A comparison of the embryonic development of the very much different organs, the eyes and the limb, points to various interesting
The eye refract the light, Which parts of the eye refract ('bend') the ligh...
Which parts of the eye refract ('bend') the light in such a way as to form an image on the retina? The curved surface of the cornea, and the aqueous humour enclosed by it,
Corpus allatum and juvenile hormone, Corpus Allatum and Juvenile Hormone ...
Corpus Allatum and Juvenile Hormone The corpora allata are rounded glands attached to the posterior side of every corpus cardiacum making a compact body just behind the brain.
Determine the basic seven food groups - nutritions, Determine the Basic Sev...
Determine the Basic Seven Food Groups - Nutritions? These basic seven food groups are: 1) Cereals and cereal products 2) Pulses (also meat and meat products) 3) Milk and m
Explain dietary assessment criteria for vitamin a, Explain Dietary Assessme...
Explain Dietary Assessment Criteria for Vitamin A? Several methods can be adopted for the dietary assessment of vitamin A such as food frequency, weekly or 3 day food weighmen
Theory of embryology -recapitulation theory / biogenetic law, RECAPITUL A ...
RECAPITUL A TIO N THEORY / BIOGENETIC LAW It was proposed by Muller & Haeckel on the basis of Baer's law. According to it, in the development of animal phylum characters
Accounting Assignment Help
Economics Assignment Help
Finance Assignment Help
Statistics Assignment Help
Physics Assignment Help
Chemistry Assignment Help
Math Assignment Help
Biology Assignment Help
English Assignment Help
Management Assignment Help
Engineering Assignment Help
Programming Assignment Help
Computer Science Assignment Help
Why Us ?
~24x7 hrs Support
~Quality of Work
~Time on Delivery
~Privacy of Work
Human Resource Management
Literature Review Writing Help
Follow Us |
T & C
Copyright by ExpertsMind IT Educational Pvt. Ltd.