Biology Forums - Study Force

There are several possible modes of inheritance through which traits can be inherited. The following pedigree charts represent four different inheritance patterns.

mode of inheritance
 

Match each type of inheritance with the correct pedigree numbered above. (Use each number only once.)

X-linked recessive:

X-linked dominant :

Autosomal recessive :

Autosomal dominant :

Autosomal dominant means you only need one bad dominant allele to show the effects. So, either RR or Rr will give you the traint.

Autosomal recessive means you need two copies of the bad gene to display the trait.

X-linked dominant mean that one bad copy of a gene on the X chromosome is enough to cause the genetic condition. It can affect both girls and boys.

X-linked recessive means that if there is one good copy of the gene, a person will not have the condition.

4 -- Autosomal dominant
1 -- X-linked recessive
2 -- X-linked dominant
3 -- Autosomal recessive

My assumptions

thx