A recessive gene is one which
Occurs less frequently than a dominant one
Occurs only in heterozygotes
Produces large amounts of $RNA$
Produces very less or no $mRNA$
The character that is expressed in the $F_{1}$-generation is called the
Mendel was the native of
Which of the following is not a hereditary disease?
Night blindness is
The best method to improve the genetic quality of mankind is