The diagram shows the genotypes of two parent plants and three of their offspring for a characteristic that is controlled by a dominant allele.
parents plant 1:Rr plant 2:Rr
offspring plant 3:RR plant 4:Rr plant 5:rr
Which of the plants have the same phenotype?
1 )
1, 2 and 4 only
1, 2, 3 and 4
3 )
3 and 5 only
4 )
3, 4 and 5
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