Answer:
The statements that describe how the trans bilayer asymmetry in the lipid bilayer is achieved and maintained are listed below.
Explanation:
Phospholipids in the plasma membrane are anchored to a specific location in the plasma membrane via strong hydrophobic interactions with neighbouring lipids thus maintaining the asymmetrical distribution of lipids in the bilayer.
Specific phospholipids in the plasma membrane covalently attach to certain integral membrane proteins.These covalent interaction anchor the phospholipid to specific location in the plasma membrane and maintain the asymmetrical distribution of lipids in the bilayer.
The answer is; C
Recombination of genes is important in the variation of the organisms because it allows for novel allelic combinations during fertilization of gametes. Natural selection works best in a population with high genotypic and phenotypic variations. This increases the chances of survival of the population in case of climate change or calamities that cause a bottleneck effect.
The answer is a mutation. Its a mutation because a mutation can cause an organism to be deformed an in some cases due to the deformation it will not be able to feed or defend for it self. For example, if a Giraffe were to be born with a short neck it would not be able to feed because trees are tall. The answer is mutilation.