To get an erection, you will need to be sexually stimulated. Doctors usually recommend taking 50 mg once per day, but the dosage can be decreased to 25 mg or increased to 100 mg if needed. Do not take more than one dose every 24 hours.
recessive allele, the member of a pair of alleles that lacks the ability to express itself in the presence of a dominant allele at the same locus.It is expressed only in the homozygous state. Compare dominant allele.See also autosomal-recessive inheritance.he member of a pair of alleles that lacks the ability to express itself in the presence of a dominant allele at the same locus. It is expressed only in the homozygous state. Compare dominant allele. See also autosomal-recessive inheritance.
You will recall that genes have different forms called alleles. An allele can be recessive or dominant. A recessive allele only shows if the individual has two copies of the recessive allele. For example, the allele for blue eyes is recessive.You need two copies of the allele to have blue eyes. A dominant allele always shows, even if the individual only has one copy of the allele. For example, the allele for brown eyes is dominant.ou will recall that genes have different forms called alleles. An allele can be recessive or dominant. A recessive allele only shows if the individual has two copies of the recessive allele. For example, the allele for blue eyes is recessive.