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

Define formation of healthy food habit - combat from obesity, Define Format...

Define Formation of healthy food habit - combat from obesity? Discarding faulty habits as early as possible. Most food habits formed at this age are for a life time. Special c

Fertilisation, Explain how the uterus supports the development of a baby du...

Explain how the uterus supports the development of a baby during gestation

Fats requirements during congestive cardiac failure, Q. Fats requirements d...

Q. Fats requirements during congestive cardiac failure? Fat: The quantity and quality of fat would be governed by the severity of hyper- lipidemia and adiposity. Emphasis, as

What is fern allies - equisetum, What is Fern Allies - Equisetum ? The ...

What is Fern Allies - Equisetum ? The earliest land plants are thought to have evolved from green algal ancestors, since they share many features. Both green algae and plants h

What are the main components of the cytoskeleton, The cytoskeleton is a net...

The cytoskeleton is a network of very little tubules and filaments spread throughout the cytoplasm of eukaryotic cells. It is made of microtubules, microfilaments and intermediate

Why the av node of a mammalian heart is destroyed, The AV node of a mammali...

The AV node of a mammalian heart is destroyed. A. A depolarization in a cell in the left atrium will cause a depolarization of a cell in the left ventricle. B. The contracti

Chloroplasts, CHLOROPLASTS Schimper (1883) coined the term chlorop...

CHLOROPLASTS Schimper (1883) coined the term chloroplastid for green plastids. Mayer called them Autoplast. Chloroplast name proposed by Erera. Green plastids wi

What do alcohol and illicit drugs do to the brain, What do alcohol and illi...

What do alcohol and illicit drugs do to the brain Whether its alcohol, nicotine, prescription painkillers, heroin, or cocaine addictive substances change the brain in fundament

Proteins requirement in dyslipidemia, Q. Proteins requirement in dyslipidem...

Q. Proteins requirement in dyslipidemia? Proteins: While the quantity of protein does not impose any significant impact on the serum lipoproteins, it is the quality of protein,

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