Which of the disorder is related with the Karyotype given below?

$A$ : Occasionally mammary glands are functional in males and the condition is called gynaecomastia.

$R$ : Decreased testosterone in later life may also lead to gynaecomastia. It is usually due to perturbation of estrogen to androgen ratio.

When a cluster of genes shows linkage behaviour they

When an albino female plant of maizeis crossed with normal green male plant, all plants in the progeny are albino because