The reason that many allopolyploid hybrids are sterile is that Many of these rapid changes may contribute to reproductive isolation and speciation
Animals which don't get pregnant, cause pregnancy or won't give birth. Usually hybrids are sterile.
Yes, but you usually have to breed them with convict cichlids, because they are hybrids and the males are often sterile.
Hybrids are often sterile because te set of chromosoms from one species cannot pair during meiosis with the set of chromosomes from the other species. ("Biology", Reece 7th edition)
All mammalian hybrids are sterile if male. The females can be subfertile.
a post-zygotic barrier
Breeds
Donkeys? No. They are sterile Mules do not breed. They have 1 too many chromosomes wich makes them infertile.
You may mean post zygotic isolation/barrier to interbreeding between species. Sterile hybrids, such as mules are a good example of this. The zygote can form from the union of two gametes, but the mature organisms can no longer produce progeny usually due to chromosome mismatch.
No, they are big cats. Ligers are the result from man cross breeding a lion and a tiger, as with most hybrids they are sterile. If they were able to reproduce, they would have cubs.
No , they usually arent sterile . For them to be sterile by birth, both the testicles need to be undescended. experirnce- 2 crypto-orchid cats.
One is guaranteed to have no microorganisms on it inside the sterile packaging, the other is clean but is not guaranteed to have no microorganisms on it.
Not exactly. Sterile refers to being free from living organisms, such as bacteria and viruses, that could cause infection or disease. Cleanliness, on the other hand, usually refers to the absence of dirt or grime. While something that is sterile is usually clean, something can be clean without necessarily being sterile.