Answer:
Deleterious alleles appear sporadically in a population
Explanation:
A population with a deleterious allele will have no or few individuals that have the ability to pass along these traits. These alleles appear less in a population because of selective pressure but they are not always absent. The alleles appear less often but are are not always passed on and the others that are genetically fit are able to pass along their genes. The reason the population equilibrium is not zero is because these alleles do appear but they are not necessarily passed along. These individuals may not be able to reproduce or reach the age of reproduction.
Deleterious alleles appear more often, making individuals less fit genetically, i.e. they pass fewer copies of their genes to future generations. Put another way, natural selection purges the deleterious alleles.
C. The nucleus does not exit within a prokaryotic cell
If the translation does not occur or works badly, then the ribosomes can't create new proteins. If the body fails to make proteins, it stops working. That's because proteins are essential for the well being of your body, and not just in the sense that eating meat gives you protein. The ones created by ribosomes are much more important.
The answer is b) "No known sexual mode of spore formation
