In X-linked recessive inheritance, all offspring of a carrier female have a ……% chance of inheriting the mutation.
a) 25
b) 50
c) 75
d) 100
In X-linked recessive inheritance, how much percentage of daughters will be carrier for a mutation if the father is affected only?
a) 25
b) 50
c) 75
d) 100
Explanation: because daughters receive one X from father (affected) and one from mother (normal)
In X-linked recessive inheritance, how much percentage of daughters will be affected from disorder for a mutation if the father is affected only?
a) 25
b) 50
c) 75
d) 0
Explanation: because daughters receive one X from father (affected) and one from mother (normal), heterozygous female is carrier of mutation
In X-linked recessive inheritance, how much percentage of sons will be affected from disorder for a mutation if the father is affected only?
a) 25
b) 50
c) 75
d) 0
Explanation: because sons receive X from mother (normal) not from affected father
Which of the following X-linked trait/s is/are recessive trait/s?
a) haemophilia A and B
b) colour blindness
c) diabetes insipidus
d) all of these
Which one of the following trait in human is controlled by a recessive gene?
a) skin colour
b) eye colour
c) tongue rolling
d) diabetes
