Predict the phenotype of the offspring from a test cross between a seedless orange and an orange with seeds.

Ss x ss. The seeded plant produces 2 gametes S and s in equal proportion, the seedless plant only s. They combine to give Ss and ss in a 1:1 ratio, so they will be 50% seeded and 50% seedless.

Explanation:

gametes or germ cells are haploid cells (example: sperm and ova) containing only one set (or n) number of chromosomes and autosomal or somatic cells are diploid cells containing 2n number of chromosomes.