Read the given passage and answer the questions that follow :- Broadly, genetic disorders can be grouped into two categories - Mendelian disorders and Chromosomal disorders. Mendelian disorders are mainly determined by alteration and mutation in the single gene. These disorders are mainly transmitted to the offspring on the same lines. The pattern of inheritance of Mendelian disorders can be easily traced in a family. The chromosomal disorders on the other hand are caused due to absence or excess or abnormal arrangement of one or more chromosomes.

Under what conditions can a girl be colorblind?

Having a carrier mother and normal father Having a normal mother and colorblind father Having a carrier mother and colorblind father. Both 1 and 2

Having a carrier mother and colorblind father.

A girl be colorblind only if she has a carrier mother and a colorblind father.