Apr 5, 2010

What information about a genetic condition can statistics provide?

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Statistical data can provide general information about how common a condition is, how many people have the condition, or how likely it is th...

How are genetic conditions and genes named?

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Naming genetic conditions Genetic conditions are not named in one standard way (unlike genes, which are given an official name and symbol by...

What are complex or multifactorial disorders?

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Researchers are learning that nearly all conditions and diseases have a genetic component. Some disorders, such as sickle cell anemia and cy...

Can changes in mitochondrial DNA affect health and development?

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Mitochondria are structures within cells that convert the energy from food into a form that cells can use. Although most DNA is packaged in ...

Can changes in the structure of chromosomes affect health and development?

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Changes that affect the structure of chromosomes can cause problems with growth, development, and function of the body’s systems. These chan...

Can changes in the number of chromosomes affect health and development?

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Human cells normally contain 23 pairs of chromosomes, for a total of 46 chromosomes in each cell. A change in the number of chromosomes can ...

Can a change in the number of genes affect health and development?

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People have two copies of most genes, one copy inherited from each parent. In some cases, however, the number of copies varies—meaning that ...