Only individuals with an aa genotype will express a recessive trait therefore, offspring must receive one recessive allele from each parent to exhibit a recessive trait. One example of a recessive inherited trait is a smooth chin, as opposed to a dominant cleft chin. Only (ss) individuals will express a smooth chin.
<span>pH is the measure of acidity/alkalinity of a substance. A pH of 7 is considered is neutral. Less than 7 is the acidic pH, with 1 being most acidic. Thus a vegetable with a pH of 5.3 is slightly acidic. A ph of 4.6-6.9 are called as low acidic foods. Thus, the vegetable is low-acidic.</span>