Megasporogenesis, Biology

Assignment Help:

Megasporogenesis

One of the nucellar cells situated subjacent to the epidermis differentiates into the primary archesporial cell. This cell is larger than the adjacent cells has dense cytoplasm and prominent nucleus. In tenuinucellate ovules, the archesporial cell functions directly as the megaspore mother cell (abbreviated as MgMC). In crassinucellate ovules, the archesporial cell first divides transversely to cut off a primary parietal cell on the outer side, and a primary sporogenous cell on the inner side. The primary parietal cell may either remain undivided or it may undergo a few divisions to form a few cells above the sporogenous cell.

2061_Megasporogenesis.png

Figure:  A part of a young ovule with large megaspore mother cell


Related Discussions:- Megasporogenesis

Special uses of biogas, S p e c i a l Uses Biogas Biogas is an im...

S p e c i a l Uses Biogas Biogas is an important renewable energy resource for rural areas. Generation of bio-gas from dung and urine is a very simple and cost-effective

Neurons - nervous system, Neurons - Nervous System Although neurons oc...

Neurons - Nervous System Although neurons occur in a great variety of sizes and morphological forms, they have a basic plan of structure representing certain common characteri

What are the vessels that carry blood to the kidneys, Q. What are the vesse...

Q. What are the vessels that carry blood to the kidneys? Is this blood venous or arterial? The renal arteries are ramifications of the aorta and so the blood filtered by the ki

Loop of henle, Normal 0 false false false EN-IN X-NON...

Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4

Natural control of population growth, N A TURA L CONTROL OF POPULATION G...

N A TURA L CONTROL OF POPULATION GROWTH - 1 .       Biotic potential - It is capacity of population to increase its number by reproduction. For all animals, it is v

What is the difference between haploid and diploid, What is the difference ...

What is the difference between haploid and diploid? why are so many anesthesias fat solvents Why is it important for core body temperature to stay more constant than skin tem

Density - population parameters and regulation, Density - Population Parame...

Density - Population Parameters and Regulation Density is defined as number of individuals or population biomass per unit of area or volume at any given time. Biomass refers t

Explain the completed test - most probable number test, Explain the Complet...

Explain the Completed Test - Most Probable Number Test? Coliform colonies on EMB or Endo agar are further examined by completed test by inoculating lactose broth and nutrient a

Excretion, How many kidney in man?

How many kidney in man?

Limb regeneration in amphibians, Limb Regeneration in Amphibians In v...

Limb Regeneration in Amphibians In vertebrates, the amphibians particularly the urodeles comprise spectacular power of regeneration. This power of regeneration has made them

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