Dominant' traits will actually disappear faster if they are disadvantageous.
Think about it: if everyone who has even a single copy of a particular allele is at a disadvantage (manifests the phenotype, in this case six fingers), then even single copies are selected against.
In the case of recessive traits, selection occurs only against homozygous carriers, who may be very rare if the allele itself is rare.
A concrete example would be something like Tay-Sachs disease. If the allele that causes this were dominant, every carrier would die before adulthood, and it would occur only as a very rare de novo mutation. But because it is recessive, it persists for now; heterozygous carriers have no disadvantage.
Being passed down those things help them to the fact on offspring inharitence
It has a closed circulatory system. because we have a closed circulation system. and all that means is that we have veins and a heart. <span />
Answer:
not all of the statement is correct. THE LACTIC ACID FERMENTATION IS ANAEROBIC not an aerobic.
