What phenotype would an offspring have if one of the parents were homozygous dominant for a trait

If assuming tasting ptc as a simple gene trait, what other genotype would you select to put in this missing genotype box that could result in this phenotype

Below are the three main organs that make up the plant body. what is the main function of the structure that is identified as b in the picture above? it anchors the plant. it produces food. it absorbs nutrients. it supports the plan

What could happen if two base pairs on a strand of dna or switched