Answer:
1. genotype: RR; phenotype: red
2. Genotype: RR, Rr, rR: red rr: not red
3. RR, rr or Rr, Rr
4. only Rr, Rr it's the only combo that would give us a recessive gene
Step-by-step explanation:
Genotype is the alleles, phenotype is the actual color or the physical manifestation of those alleles