Colour Blindness Disease || Genetics || D Brajesh educational

Colour blindness results from

Colour - blindness occurs in

Colour blindness occurs due to :

Colour blindness is characterized by

Colour blindness is rare in females due to its defective gene being sex linked. A colour blind girl is born will be only when :

Assertion:There are more colour blind men than woman throughout the world Reason : Colour blindness is a sex-linked disease resulting from a recessive gene on the Y chromosomes.

Colour blindness in which all colours appear grey is

In humans, red-green colour blindness is recessive and sex-linked, while albinism is recessive and autosomal. A marriage between two homozygous parents a normal visioned albino woman and a colour blind and normally pigmented man will produce children

Identify the number of Mendelian disorders from the given list . Sickle cell, anaemia , Colour blindness , Thalassemia , Phenylketonuria , Cystic Fibrosis , Haemophilia,

(i) Why is colour blindness more prominent in males than females? (ii) Why is Drosophila used extensively for genetic studies?