In $Mirabilis$ $jalapa$,when a homozygous red-flowered plant is crossed with a white-flowered plant,all $F_1$ plants produce pink flowers. When $F_1$ plants are self-pollinated,the resulting $F_2$ generation produces red,pink,and white flowers in the ratio of:

  • A
    $1:1:2$
  • B
    $2:1:1$
  • C
    $1:0:1$
  • D
    $1:2:1$

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