$A$ : Myotonic dystrophy is caused by recessive mutant pleiotropic gene.
$R$ : Gene mutation leads to more synthesis of fibrillin proteins.

Improvement of genetic characters and present day generation on the basis of best nutrition and training is called

Crossing over is advantageous because it brings about

If in a child of $10$ years ages of the intelligence is of $14$ years child, the $I.Q.$ of this child would be

A man and a woman, who do not show any apparent signs of a certain inherited disease, have seven children ($2$ daughters and $5$ sons). Three of the sons suffer from the given disease but none of the daughters are affected which of the following mode of inheritance do you suggest for this disease