In Mendel's monohybrid cross experiment,the phenotypic ratio is $P$ and the genotypic ratio is $Q$. Select the correct option for $P$ and $Q$.
$\quad \quad \quad P \quad \quad \quad Q$

  • A
    $1: 2: 1 \quad 3: 1$
  • B
    $1: 2: 1 \quad 1: 2: 1$
  • C
    $3: 1 \quad 3: 1$
  • D
    $3: 1 \quad 1: 2: 1$

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