Duchenne muscular dystrophy (DMD) is caused by 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 20s. How likely is it for a woman to have this condition?
A) Women can never have this condition.
B) One-half of the daughters of an affected man could have this condition.
C) One-fourth of the children of an affected father and a carrier mother could have this condition.
D) Very rarely would a woman have this condition; the condition would be due to a chromosome error.
E) Only if a woman is XXX could she have this condition.
An example of an experiment that supported Beadle and Tatum's one gene
Step 3 of gene cloning: The cloning of a recombinant vector.
human nervous system
Midsagittal MRI Scan of a Human Brain
The uracil-binding pocket of human UNG
Gene action in pathways