A person must be at least 18 years old to be appointed to the Senate and must be at least 30 to be President or Vice-President of the Senate. As only members of the House of Representatives are eligible to be appointed Prime Minister, the Prime Minister must be at least 18 years old.
â¢ RECESSIVE (adjective). The adjective RECESSIVE has 2 senses: 1. of or pertaining to a recession. 2. (of genes) producing its characteristic phenotype only when its allele is identical. Familiarity information: RECESSIVE used as an adjective is rare. RECESSIVE (noun). The noun RECESSIVE has 1 sense: 1. an allele that produces its characteristic phenotype only when its paired allele is identical. Familiarity information: RECESSIVE used as a noun is very rare.
In genetics, referring to that allele of a gene that is not express ed in the phenotype when the dominant allele is present. Also refers to the phenotype of an individual (homozygote) carrying two recessive alleles.(Figure 8-1) ...odominant alleles: pairs of alleles that both affect the phenotype when present in a heterozygote. Locus: the particular position on homologous chromosomes of a gene. ~ Refers to an allele of a gene that is express ed when the dominant allele is not present.