In X-linked dominant inheritance, a male of female child of an affected mother has a…….% chance of inheriting the mutation and thus being affected with the disorder.
a) 25
b) 50
c) 75
d) 100
Explanation: each child whether male or female receive one X from mother which may be mutated or normal
In X-linked dominant inheritance, what percentage of daughter will be affected if father is affected?
a) 25
b) 50
c) 75
d) 100
Explanation: daughter receives one X chromosome from father which results in mutation
In X-linked dominant inheritance, what percentage of sons will be affected if father is affected?
a) 25
b) 50
c) 75
d) 00
Explanation: son receives X chromosome from mother not from father hence is normal
Which of the following X-linked trait/s is/are dominant trait/s?
a) Alport’s syndrome
b) Coffin-Lowry syndrome (CLS)
c) Idiopathic hypoparathyroidism
d) all of these
Which of the following inheritance is called holandric inheritance?
a) X-linked
b) Y-linked
c) autosomal
d) all of these
Why Y-linked traits and Y-linked diseases are rare?
a) Y-chromosome is small
b) Y-chromosome simply passed from father to son only with no recombination
c) Y-chromosome has less genes as compare to others
d) all of these
