If a trihybrid cross for ttggrr x ttggrr is performed what percent of the offspring would be tall green and round?

Answer 1

100%

Answer 2

In a trihybrid cross, the offspring would inherit one allele from each parent for each of the three traits (Tall, green, and round). Since the parents are homozygous for all traits (ttggrr x ttggrr), all the offspring would be tall, green, and round, resulting in 100% of the offspring being tall, green, and round.