English: This pedigree has a sex-linked recessive disorder. It is possible to tell the trait is recessive because it skips a generation with only carriers in generation 2. (INCORRECT The male in generation 2 should also be affected if the female parent has the disorder A.Smyth 2019) Because the trait is sex-linked only females can be carriers since only females have 2 x chromosomes. As a result a lot more males tend to display sex-linked recessive disorder than females. Female carriers tend to give the trait to about half of their sons and daughters but only the sons will be affected while the daughters will only be carriers.
to share – to copy, distribute and transmit the work
to remix – to adapt the work
Under the following conditions:
attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.