Apomixis, Biology

Assignment Help:

Apomixis

The formation of sporophyte from the gametophyte without sexual process signifies apomixis. It relates to the replacement of alternation of a reduced gametophyte and an unreduced sporophyte by an unreduced gametophyte and sporophyte. It occurs in relatively in about 35 families. The most common being Asteraceae and Poaceae. Apomixis can be classified into two types, recurrent (in non- reduced embryo sacs) and non-recurrent (in reduced embryo sacs). The later relates to development of haploid embryos without the actual fusion of gametes.

275_Apomixis.png

Figure: Diagrammatic representation of Apomixis types


Related Discussions:- Apomixis

Vitamin - a, VITAMIN - A Discovered by Macollum. Also known as ...

VITAMIN - A Discovered by Macollum. Also known as Retinol / Antixeropthalmic vitamin / Auxerophthol. It is vitamin for normal vision. It forms retinal pigments rho

Where in living beings can found mineral salts, Q. Which are mineral salts?...

Q. Which are mineral salts? Where in living beings can found mineral salts? Ans. Mineral salts are simple inorganic substances made of metallic chemical elements, like sodiu

What do you know by hemodynamic responses, Q. What do you know by Hemodynam...

Q. What do you know by Hemodynamic Responses? Reduced exercise capacity roughly reflects impaired LV function, and may contribute its prognostic value to this association. Comp

Concentration of noradrenergic cell bodies, The major concentration of nora...

The major concentration of noradrenergic (and adrenergic) cell bodies is found in locus ceruleus a nucleus in the reticular formation. The axons of these neurons project through t

The best describes the acid properties of guanine, Which statement best des...

Which statement best describes the acid/base properties of guanine? -at pH, guanine will be negatively charge -at pH, guanine will be neutral -it will be an effective buff

Explain nutrient needs and recommended dietary allowances, Explain Nutrient...

Explain Nutrient needs and Recommended Dietary Allowances? For infants and preschoolers, satisfactory growth is a sensitive criterion of whether needs are met. 50 th percentil

Nursing care of common cold, Nursing Care of Common Cold: Relieve Nas...

Nursing Care of Common Cold: Relieve Nasal Congestion Clean the nasal passage to remove secretions. In  infants nasal aspirator can be used while  the older children can

Illustrate photochemical phase, Q. Which are the subproducts of the photoch...

Q. Which are the subproducts of the photochemical phase that are essential for the chemical stage of photosynthesis? The chemical stage of photosynthesis depends on ATP and NAD

Nature: matter and energy, Nature: Matter and Energy Nature is not just...

Nature: Matter and Energy Nature is not just our immediate surrounding or environment, but is the whole Universe of Cosmos. Study of the origin   and topography of cosmos is ca

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