Explain how inbreeding can increase the chance that two individuals will produce homozygous recessive offspring in which mutated deleterious alleles can be expressed.
Because inbreeding increases the chance that two parents will carry similar deleterious recessive genes, inbreeding increases the chance that two individuals will produce homozygous recessive offspring in which mutated deleterious alleles can be expressed. In unrelated parents, the chance that two individuals will have the same deleterious mutated alleles is very slight and, thus, the chances are very high that any deleterious allele will be masked by a dominant normal allele from the other parent.
