The complement system is a biological
barrier of the immune system.

The complement system is a group of
in the blood that detect pathogens that have entered the body.

The complement system can cause
, the swelling of a part of the body accompanied by redness, swelling, and pain as a response to infection.

Duchenne muscular dystrophy is a serious condition caused by a recessive allele of a gene on the human x chromosome. the patients have muscles that weaken over time because they have absent or decreased dystrophin, a muscle protein. they rarely live past their twenties. how likely is it for a woman to have this condition? a) women can never have this condition.b) one-fourth of the daughters of an affected man would have this condition.c) one-half of the daughters of an affected father and a carrier mother could have this condition.d) only if a woman is xxx could she have this condition.