Answer:
Tall sunflower- Tt
Short sunflower- tt
Explanation:
According to this question involving a gene that encodes plant height in sunflower plants, the allele for tallness (T) exhibits dominance over the allele that codes for shortness (t).
A tall sunflower plant is crossed with a short sunflower plant. Half of the offspring from this cross are tall, and the other half are short. The short plants will possess a genotype "tt" because the short trait can only be expressed when the alleles are the same.
The tall offsprings must possess a heterozygous genotype i.e. Tt. If this cross produced Tt and tt offsprings, hence, the geneotypes of the parents must be:
Tall sunflower parent- Tt
Short sunflower patent - tt
