In man the mutation disease ‘Aniridia' $(Congenital\, absence \,of\, iris)$ occurs due to
Recessive mutation
Dominant mutation
Lethal mutation
All the above
Term 'genetics' was given by
Select the incorrect statemant from the following.
How many true breeding pea plant varieties did Mendel select as pairs, which were similar except in one character with contrasting tralts$?$
Absence or excess or abnormal arrangement of one or more chromosomes results in
Linked gene are separated by