Posted: August 16th, 2017

Which type of Mendelian inherited condition results in both genders being affected equally in a vertical pattern?

Which type of Mendelian inherited condition results in both genders being affected equally in a vertical pattern?
a) Automosomal dominant inheritance
An individual who has an autosomal dominant inherited condition carries a gene mutation for that condition on one chromosome of a pair.
b) Automosomal recessive inheritance
The pattern of inheritance in autosomal recessive inherited conditions is different from that of autosomal dominant inherited conditions in that it is more horizontal than vertical, with relatives of a single generation tending to have the condition.
c) X-linked inheritance
X-linked conditions may be inherited in families in recessive or dominant patterns. In both, the gene mutation is located on the X-chromosome. All males inherit an X chromosome from their mother with no counterpart; hence, all males express the gene mutation.
d) Multifactorial genetic inheritance
Neural tube defects, such as spina bifida and anencephaly, are examples of multifactorial genetic conditions. The majority of neural tube defects are caused by both genetic and environmental influences that combine during early embryonic development leading to incomplete closure of the neural tube.