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

Find no. of pair of alleles involved polygenic inheritance, How to find the...

How to find the number of pair of alleles involved in polygenic inheritance using the number of phenotypical forms of the trait they condition? Considering the "p" number of th

Where does calvin cycle take place in chloroplast, Where does Calvin cycle ...

Where does Calvin cycle take place in chloroplast? Explain the cycle. a) Where is electron transport system operative in mitochondria? b) Explain the system highlighting the

Clinical manifestations of bronchial asthma, Clinical Manifestations C...

Clinical Manifestations Can be chronic to acute, mild to severe. Acute attack often occur at night. During an acute attack, audible inspiratory and expiratory wheezing. Patie

Define principle behind the functioning of a ph meter, Define Principle beh...

Define Principle behind the functioning of a pH meter? Principle Hydrogen ions in solution, like other ionic species, conduct an electric current. When a glass electrode is dip

Which is the kind of nitrogen waste birds produce, Q Which is the kind of n...

Q Which is the kind of nitrogen waste birds produce? Why does this feature, besides being an adaptation to the terrestrial environment, also mean an adaptation to flight? Birds

Cross-pollination - types of pollination, Cross-Pollination - Types of Poll...

Cross-Pollination - Types of Pollination In this kind of pollination the pollen from anther of one individual is transferred to the stigma of another individual of the same sp

What is the probability that the child will have pku, PKU is a recessive di...

PKU is a recessive disorder. Suppose two people who were heterozygous for PKU married and had a child. What is the probability that the child will have PKU?

Explain environmental resistance and the population growth, What is the rel...

What is the relationship among environmental resistance and the population growth according to the biotic potential curve and the real population growth curve? The difference

Excretion in protozoans, Excretion in Protozoans Excretion of metaboli...

Excretion in Protozoans Excretion of metabolic wastes is dope almost exclusively by diffusion. All protozoans are ammonotelic i.e., the end product of their nitrogen metabolis

What are the risk factors for development of food allergy, What are the ris...

What are the risk factors for the development of food allergy? Having gone through the discussion above, can you identify at least one important factor leading to food allergy?

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