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.
A dominant allele is an allele where its phenotype will always be represented when the allele for that gene is present. A recessive allele can be masked by a dominant allele w â¦ hen a dominant and recessive allele are present for the same gene. dominant allele is one which expresses what it codes for such as eye color no matter what the other allele is. A recessive allele will only express what it codes for if there is a recessive pair.