Where are you most likely to find primary secession

The mitochondrion functions lipid storage protein synthesis photosynthesis dna replication atp synthesis

Suppose you have monohybrid pea plants in your garden and find that they produce round seed to wrinkled seeds in the ratio of 3: 1. if the allele are designated (r & r) receptively. what is the probable genotypes of the round seeds which produced f 1 ? rr & rr rr only rr & rr rr only rr only

Idon’t know the answer and i’ve been stuck on it for a while now skskskskks