In a group of rose plants, some individuals have thorns and others do not. In this group, the gene for the thorns trait has two alleles. The allele for not having thorns (n) is recessive to the allele for having thorns (R). A certain rose plant from this group has the heterozygous genotype Rr for the thorns gene. Based on this information, what is this plant's phenotype for the thorns trait?

A. Having thorns
B. No thorns

The answer is having thorns, because the recessive allele is having thorns goes by the letter R, which is represented that way.

Explanation:

an active site is a region that is present on an enzyme where the reactants or the substrate molecules we can say bind and experience a chemical reaction. the substrate is basically a reactant whose concentration is changing and that is converting into a product after binding at the active site of an enzyme