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What isolating mechanism inculdes improper development of hybrids and failure of hybrids to become established in nature?

Postzygotic barriers, such as hybrid inviability and hybrid sterility, can lead to the improper development of hybrids and prevent them from establishing themselves in nature. These barriers occur after hybridization and can hinder the survival and reproduction of hybrid offspring.


Example of post-zygotic barrier?

Post-zygotic barriers are reproductive barriers that occur after fertilization, such as hybrid inviability or hybrid sterility. An example of a post-zygotic barrier is when a hybrid offspring fails to develop properly or is unable to reproduce, reducing the fitness of the hybrid offspring.


What is the importance of sexual reproduction among species?

Sexual Reproduction is superior to asexual reproduction mainly for the reason that it involves gametes from two different individuals. This improves chances of variations which is the basis of heredity and evolution. In asexual reproduction, only one parent's gamete is involved. Thus the offspring is liable to have all the characteristics ( and defects) of the parent which doesnot allow variation.


What is post fertilization?

Post fertilization refers to the stage in reproduction that follows fertilization, where the sperm and egg have fused to form a zygote. During this stage, the zygote undergoes processes such as cleavage, implantation, and eventually develops into an embryo.


What is the reproductive behavior of pigs, including details about their mating rituals and the unique physiological aspect of pigs orgasms?

Pigs are known for their promiscuous mating behavior, with both males and females engaging in multiple partners. During mating rituals, male pigs will often compete for the attention of a female by displaying aggressive behaviors. Female pigs are known to be receptive to mating only during specific periods of their reproductive cycle. One unique aspect of pig reproduction is the presence of a "post-copulatory lock." This is a physiological response where the male's penis swells inside the female's reproductive tract, preventing other males from mating with her for a period of time. This lock is believed to increase the chances of successful fertilization.


Can doves and eagles mate?

Copulation may be possible, but there would be a number of post-zygotic barriers that would prevent the survival of the offspring.


What were the twos of animals of Noah's ark used for?

Repopulating the world post-flood. Two, a male and a female obviously being necessary for reproduction.


Where can you buy a German ww2 reproduction steel helmet for under 40 pounds including Post and Packaging?

im not sure how much it is but there is a website called BUDK.com that has them


What has the author Ken Young written?

Ken Young has written: '\\' 'Managing the post-industrial city' -- subject(s): Urban policy 'Abolition' 'The race relations adviser in local government' 'Breaking down the barriers'


What does the term foley refer to in filmmaking?

Foley is the reproduction of everyday sound effects which are added in post production to enhance the quality of audio for films, television, video, video games and radio.


What is a post acrosomal sheat job function in sperm cells?

The post acrosomal sheath is a structure in sperm cells that plays a role in helping the sperm penetrate the outer layer of the egg during fertilization. It contains enzymes that help break down the egg's protective barriers, allowing the sperm to enter and fertilize the egg.


What has the author Rest B Lasway written?

Rest B. Lasway has written: 'Barriers to participation of new-literate adults in the post-literacy programme in Tanzania' -- subject(s): Literacy programs, Adult education, Literacy