Gene mutation may influence age at onset of Parkinson's disease
... researchers had not previously determined whether heterozygotes were at increased risk for Parkinson's disease. P...blings shared the same version of the parkin gene, heterozygotes developed Parkinson's disease an average of 11.7 years earlier than those with no mutations, and tho...Scientists develop a new diagnostic approach for carriers of recessive genetic disorders
... normal, although some reports have suggested that heterozygotes may have an increased risk of cancer. Using microarray technology, which simultaneously ascertains the expression patterns of thousands of genes, Cheung and Ewens discovered that heterozygous carriers of NBS exhibited distinct gene expression patte...Sweet yet sophisticated: Honey bee genome lends insight into sociality, sensation and sex
...zed eggs with only one copy of csd ) become male, heterozygotes (with two different copies of csd ) become female, and homozygotes (with two exact copies of csd ) develop into males that are eaten by workers after they hatch. Because the homozygotes do not survive to reproductive age, csd was theoretically ...