Post-mating isolating mechanisms, Biology

Assignment Help:

The second category of isolating mechanism that may permit interspecific mating but ensures reduced viability is called post-mating isolating mechanism. This category could be subdivided into two types.

Interspecific steiility : Organisms belonging to different species may mate, but may not produce any offspring.

Hybrid sterility : Here the interspecific cross may result in an F1 offspring but the offspring is invariably sterile.

We shall now briefly look into each one of these sterility mechanisms with plant and animal examples.


Related Discussions:- Post-mating isolating mechanisms

Give an example of structural protein, Give an example of each of the follo...

Give an example of each of the following types of proteins: a. Enzyme b. Structural protein c. Motor protein

Heteroduplex dna, Heteroduplex Dna  is generated by the base pairing betwee...

Heteroduplex Dna  is generated by the base pairing between complementary single strands derived from the different parental duplex molecules; heteroduplex DNA molecules occuring du

What is primary growth in shoot, What is Primary Growth in Shoot? The ...

What is Primary Growth in Shoot? The growth in height of a plant stem results from the division of cells at the apex, or tip of the stem, called the shoot tip. Here, a group o

Explain the gomez classification, Explain the Gomez classification? It ...

Explain the Gomez classification? It will be of interest to you to learn that in Mexico, a child specialist named Gomez and his co-workers proposed a classification expressing

What are the functions of the eyelids, What are the functions of the Eyelid...

What are the functions of the Eyelids? Functions of the Eyelids: The eyelid makes the outer most layers, covering the eye. Because of its strategic position, the eyelid s

Examine why humans not evolve with one central repository, Discuss why huma...

Discuss why humans not evolve with one central repository of DNA rather than having it replicated throughout the body?

Adult (post natal) stem cells-types of stem cells, Adult (Post natal) stem ...

Adult (Post natal) stem cells : act as repair system for the body replenishing specialized cells but also maintain the normal turnover of regenerative organs such as blood, skin o

Define traditional cycle of root canal treatment, Define Traditional Cycle ...

Define Traditional Cycle of Root Canal Treatment The traditional cycle of Root Canal Treatment a) Dig in the tooth to make a big hole b) Then, look through this hole to f

Neurons - nervous system, Neurons - Nervous System Although neurons oc...

Neurons - Nervous System Although neurons occur in a great variety of sizes and morphological forms, they have a basic plan of structure representing certain common characteri

What, what are mendal low

what are mendal low

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