Sentences with phrase «contained normal copies»

The researchers knew that the cancer - causing mutations had arisen spontaneously in the women's ovaries because healthy cells taken from the same women contained normal copies of BRCA1.

Not exact matches

Normal kids find it frustrating to copy a picture containing a visual illusion, such as M. C. Escher's drawing in which water flows uphill.

While normal cells contain only two to five copies of Steamer, cancerous cells can have 150 copies.

Even embryos that contained the intended HIV - blocking mutation in one copy of CCR5 either had normal DNA or an unintended mutation in other copies of the gene.

In a normal, working copy of the gene, there is a section containing a pattern of three DNA nucleotides — guanine, adenine, adenine (GAA)-- repeated up to about 20 times.

Normal cells should contain just two copies of the gene (one copy from each parent), which is involved in embryo development.