Which of the following is not a hereditary disease?
Cretinism
Cystic fibrosis
Thalassemia
Haemophilia
In Cooley's Anemia, the affected chain of a haemoglobin is
Describe test cross. why it is necessary ?
In $F_{2}$-generation, quantitative inheritance $1: 4: 6: 4: 1$ is obtained instead of
$21$ trisomy in humans causes
How many true breeding pea plant varieties did Mendel select as pairs, which were similar except in one character with contrasting tralts$?$