In a certain plant, red flowers $(R)$ are dominant to white flowers $(r)$ and tallness $(T)$ is dominant to dwarfness $(t)$. $A$ heterozygous plant $(RrTt)$ is backcrossed with a double recessive plant $(rrtt)$. If the gene loci for colour and size are situated very close together on the same chromosome, the expected percentage of offspring could be approximately:
Tall RedTall WhiteDwarf RedDwarf White

respectively.

  • A
    $25$%$25$%$25$%$25$%
  • B
    $49$%$49$%$1$%$1$%
  • C
    $49$%$1$%$1$%$49$%
  • D
    $1$%$1$%$49$%$49$%

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