A person with an iherited disorder has a child with a person who does not have the condition...?

Question

a person with an inherited disorder has a child with a person who does not have the condition. half the children have the disorder, both males and females. how is this condition inherited?

a)autosomal dominant

b)autosomal recessive

c)X linked dominant

d)X linked recessive

e)aneuploidy

Answer 1

A. autosomal dominant

- Features of autosomal dominant inheritance-

1. No carrier state (I am assuming there is NO carrier state in this case because nothing about it is mentioned.)

2. Both sexes are affected equally

3. If one parent is affected; the condition will be transmitted to 50% of the children.

http://www.healthsystem.virginia.edu/uva...

Answer 2

answer is A . because both sexes are affected and 50% of the child have the condition. Only way for that to occur is if one parent is heterzygous and the trait is dominant and the other parent is homozygous recessive.  Doing a punnent square 50% the child would be herterozygous and have the condition and 50% homozygous recessive and be normal

Answer 3

Not enough info...

Could be autosomal dominant or recessive.  

If the disorder is autosomal recessive the affected person would be aa.  If the non-affected parent is Aa, half of the children will be Aa (not affected) and half of the children will be aa (affected)

If the disorder is autosomal dominant an affected person could be Aa or AA (For the children to have a 50:50 the affected person would have to be Aa, though).  If the non-affected parent is aa, half of the children will be Aa (affected) and half will be aa (non-affected)

You would need to know more about the grandparents of the offspring.