Homomorphic types - intra specific incompatibility, Biology

Assignment Help:

Homomorphic Types - Intra specific Incompatibility

It is characterized by morphologically indistinguishable mating types within a species. A proper breeding is required for their recognition. This kind of incompatibility operates in more than 250 genera belonging to 71 families of angiosperms. It operates through multiple alleles (as many as 45 alleles are already reported from 500 plants) of S-gene. Pollen grains with one S-allele common with one or both S-allele/s of pistil is incompatible, it is therefore conceivable that on pollen side the haploid gametophyte controls incompatibility. The S-allele my express a relationship of dominance or independence in pollen and/or pistil.


Related Discussions:- Homomorphic types - intra specific incompatibility

What is the ph inside the stomach, Q. What is the pH inside the stomach? Wh...

Q. What is the pH inside the stomach? Why is there a need to keep that pH level? How is it maintained? Which are the cells that produce that pH? The normal pH of the gastric ju

Genetics, What are the Elements of Heredity and variations?

What are the Elements of Heredity and variations?

Mollusca, in molluscathe foot is used for (capturing locomotion or both

in molluscathe foot is used for (capturing locomotion or both

Protein synthesis, Protein Synthesis The central dogma of modern bioche...

Protein Synthesis The central dogma of modern biochemistry is totally based on the coded information holds within deoxyribonucleic acid (DNA). Double stranded DNA is converted

Pporifera, write the general account of porifera

write the general account of porifera

Prevent vitamin a deficiency, Vitamin a deficiency leads to a variety of di...

Vitamin a deficiency leads to a variety of disorders of the eyes and this effects the vision. Some of the disorders due to vitamin A deficiency are given below. 1) Night Blindne

Nutrition, heterotrophic mode nutrition plants

heterotrophic mode nutrition plants

Objectives of gingival curettage - endodontic surgery, Objectives of Gingiv...

Objectives of Gingival Curettage - Endodontic Surgery a) Provides access and visibility of the apex, b) Removal inflamed tissues, c) Provides biopsy. -  It’s advisable

Explain elephant trunk technique in aortic aneurysm, Explain Elephant Trunk...

Explain Elephant Trunk Technique in Aortic Aneurysm ? Elephant Trunk Technique :  When aneurysm involves arch of the aorta and large portion of descending thor

Salinity - marine ecosystems, Salinity - Marine Ecosystems Physico-...

Salinity - Marine Ecosystems Physico-chemical factors - Salinity The sea is salty and its salinity is fairly constant, averaging about 3.5 per cent usually written as

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