Question

one trait a plant can have is either red leaves (r) or brown leaves (r). another trait is tall stems (t) or short stems (t). a plant used in a dihybrid cross has the genotype rrtt. what is the phenotype of this plant? a. red leaves, short stems b. brown leaves, tall stems c. brown leaves, short stems d. red leaves, tall stems

Explanation:

In genetics, uppercase letters represent dominant alleles. For the leaf - color trait, R (red) is dominant over r (brown), and for the stem - length trait, T (tall) is dominant over t (short). A plant with genotype RrTt will show the dominant phenotypes for both traits.

Answer:

D. Red leaves, tall stems