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

Explain nature of fatty acids present in the triglyceride, Explain the Natu...

Explain the Nature of fatty acids present in the triglyceride? Nature of fatty acids present in the triglyceride determines the physico-chemical properties and biological signi

What is the limit of resolution express, On a given microscope, the numeric...

On a given microscope, the numerical aperture of the objective is 1.5. The microscope is provided with a filter that selects a wavelength of 500 nm. What is the limit of resolution

Process for estimation of sucrose by fehling soxhlet method, Explain Proced...

Explain Procedure for Estimation of Sucrose by Fehling Soxhlet Method? Follow the proceedure enumerated herewith and carry out the experiment: 1. Standard titration (Standar

Determine the properties of sol, Properties of Sols Sol, is  a solid l...

Properties of Sols Sol, is  a solid liquid dispersion with solid or semi-solid particles dispersed in a continuous liquid phase. For e.g. starch in cold water. Sols exhibit ch

Zoology , phylum platyhelminthes

phylum platyhelminthes

Define the meaning of goitrogens, Define the Meaning of Goitrogens? Goi...

Define the Meaning of Goitrogens? Goitrogens are substances that interfere with iodide metabolism in any way that inhibits thyroid hormone synthesis. As a result, there is augm

What are some human diseases caused by virus, What are some human diseases ...

What are some human diseases caused by virus and what are their respective modes of transmission? The main viral diseases transmitted by respiratory secretions (cough, sneezes)

Aortic allograft -biological valves, Aortic Allograft (Homograft) :  ...

Aortic Allograft (Homograft) :  In the earlier years fresh antibiotic preserved aortic allografts were tried. As the shelf life is limited, availability of all sizes at all t

How to measure blood pressure, Q. How to measure Blood Pressure? With t...

Q. How to measure Blood Pressure? With the onset of exercise, the resistance to blood flow through contracting muscles decreases significantly and results in a fall in the peri

Stage of total biological inactivity, Q. Is the stage when an insect larva ...

Q. Is the stage when an insect larva is within a cocoon a stage of total biological inactivity? The period when the larva is inside its cocoon is a time of intense biological a

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