In which one of the following, complementary gene interaction rato of $9: 7$ is observed?
Fruit shape in Shepherd's purse
Coat colour in mouse
Feather colour in fowl
Flower colour in pea
The number of chromosomes in Klinefelter’s syndrome is
The loss of chromosomal segment is due to
$XO$ type of sex determination can be found in:
When an albino female plant of maizeis crossed with normal green male plant, all plants in the progeny are albino because
It is a mutagen.