Frågor & svar

What are mutations?2019-10-12T15:06:05+01:00

Mutations are permanent changes to the DNA. While some mutations cause disease, many other mutations do not impact health.

What is “junk DNA”?2019-10-12T15:05:28+01:00

Only 1% of DNA is made up of genes. The rest — previously called “junk DNA” — is noncoding DNA that is very important for turning genes on and off.

What are genes?2019-10-12T15:05:00+01:00

Genes are small units of DNA, which contain instructions for how to make proteins. A chromosome contains many genes.

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