What would the cross between a plant of genotype rraa and one of genotype rraa

The cross between RrAa and RRaa genotypes represent a dihybrid cross because the genes of two traits are simultaneously being considered.

Since characters are not specified here, let's suppose that these are R represent dominant allele for seed shape Round while r represent recessive allele for seed shape wrinkled.

Similarly, A represent the dominant allele of flower color that is yellow while a represents the recessive allele of flower color that is green. (just supposing)

Let's cross them:

P1:                                                 RrAa x RRaa

gametes:          RA: Ra : rA  : ra              X        RA: Ra : rA  : ra

Genotypic ratio                                

1/16: RRAA      Round yellow

2/16: RRAa      Round yellow

2/16: RrAA      Round yellow

4/16: RrAa       Round yellow

1/16: RRaa       Round green

2/16: rrAa        Wrinkled yellow

2/16: Rraa       Round green

1/16: rrAA         Wrinkled yellow

1/16: rraa          Wrinkled green

You can see attached image for better understanding.

Hope it helps! :)

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drfgt dfs f grftsrh fg rts gh   htr hr rs t