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

Transport of oxaloacetate, Pyruvate   carboxylase   is a mitochondrial   ma...

Pyruvate   carboxylase   is a mitochondrial   matrix enzyme whereas the other enzymes of gluconeogenesis are situated outside the mitochondrion. Thus oxaloacetate are produced by p

To show the effects of yeast on dough, To show the effects of yeast on doug...

To show the effects of yeast on dough Mix together some sugar, water and flour in the proportions to make good bread dough. Divide the dough into two equivalent parts. Stir a h

Why don''t we see things upside down, Q. Since the visual images are projec...

Q. Since the visual images are projected in an inverted manner on the retina why don't we see things upside down? Since the crystalline lens is a convex spherical lens it forms

Explain about the deficiency of riboflavin, Explain about the Deficiency of...

Explain about the Deficiency of Riboflavin? Riboflavin deficiency results in the condition of hypo- or ariboflavinosis, with sore  throat, hyperaemia (condition in which the bl

Explain assessment of iron status - transferrin saturation, Explain assessm...

Explain assessment of iron status - Transferrin saturation? Transferrin saturation: As iron deficiency progresses, there is a decline in transferrin saturation. With deficiency

What is absorption, What is absorption?   Absorption involves  the  tr...

What is absorption?   Absorption involves  the  transfer of materials  through  the mucosa of the  alimentary tract  into blood and lymph vessels.

What is cerebellum, What is Cerebellum Cerebellum is situated under the...

What is Cerebellum Cerebellum is situated under the cerebrum. Cerebellum has right and left lobes which are joined and form a part of pons. The function of the cerebrum is

Explain the objectives of history of mart disease, Explain the OBJECTIVES o...

Explain the OBJECTIVES of history of mart disease? After reading this unit, you should be able to: 1. Understand the importance of Cardio-vascular diseases as the leading cause

In which area dietitians works, In which area Dietitians works Dietitia...

In which area Dietitians works Dietitians can work in a variety of areas, as already mentioned earlier, many of these are in the  Hospitals or in  the community  as  'Clinical

Biochemical production, Plants are the source of a large variety of bioche...

Plants are the source of a large variety of biochemicals which are metabolites of both primary and secondary metabolism. But secondary metabolites are of much greater interest s

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