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

What is master gland, Which of the below is usually referred to as "master ...

Which of the below is usually referred to as "master gland" because it regulates so many body activities? Is it: a) Pituitary gland b) Thyroid gland c) Adrenal gland d

What is hemoglobin f, What is hemoglobin F? Why does the fetus need a diffe...

What is hemoglobin F? Why does the fetus need a different hemoglobin? Hemoglobin F is the hemoglobin found in the mammalian fetus and hemoglobin A is the normal hemoglobin. Hem

Express krebs cycle photosystem ii, Calvin cycle electron transport chain g...

Calvin cycle electron transport chain glycolysis Kreb's cycle photosystem II.

What is ancylostomiasis, Q. What is ancylostomiasis? The Ancylostomiasi...

Q. What is ancylostomiasis? The Ancylostomiasis is a disease caused by the Necator americanus or Ancylostoma duodenale both hookworms belonging to the nematode phylum (roundwor

Ideal eia and measures and benefits of eia, An ideal EIA system would: ...

An ideal EIA system would: (i)     Apply to all projects that are expected to have significant environmental effects and address all impacts that are expected to occur due to t

Illustrate the respiratory system, Illustrate the Respiratory System In...

Illustrate the Respiratory System In general, respiration and breathing are understood to be same. But it is not so. Breathing simply means taking in oxygen from air and giving

The heart, Ask question #Minimum 100 words adccepted#

Ask question #Minimum 100 words adccepted#

How an electron acceptor becomes nadh, If NAD+ is an electron acceptor that...

If NAD+ is an electron acceptor that becomes NADH and the NADH then donates a proton to ATPase, shouldn't NADH now become NAD- since it lost it's proton but still has the electron?

How much dna is in a typical human cell, Q. How much DNA is in a typical hu...

Q. How much DNA is in a typical human cell? If DNA (deoxyribonucleic acid) molecules in a single human cell were stretched out and laid end to end they will measure approximate

Explain the dark adaptation of vitamin a, Explain the Dark Adaptation of Vi...

Explain the Dark Adaptation of Vitamin A? In the early stages of VAD, the individual cannot see objects in dim light. This' phenomenon is used as a criterion for assessment in

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