Sentences with phrase «known genes on chromosome»

They found 3491 matching chunks, but only 1229 corresponded to known genes on chromosome 21.

Not exact matches

«Unravelling genes on Y chromosomes has always been a challenging task, and little was known about Y chromosome genes in most mammal species,» he says.

Roses knew that the gene encoding ApoE was also on chromosome 19.

The Fem RNA breaks down a corresponding molecule made by a gene known as Masculinizer, which is found on the Z chromosome.

For more than two decades we've known that a single gene on the Y chromosome, called Sry, is responsible for male sex determination.

Engelhardt's group was responsible for mapping associations between genetic variants and gene expression levels on different chromosomes, a connection known as «trans - expression quantitative trait loci (trans - eQTLS).»

During development, chromosomes are subject to chemical changes that don't affect the nucleotide sequence but can turn genes on or off; the best known example is methylation, in which a methyl group is attached to specific DNA regions.

The prevailing theory for decades has been that extra copies of genes on a specific area of chromosome 21, known as the Down syndrome critical region (DSCR), cause the mental and physical features of Down syndrome.

Specifically, they studied a gene on the X chromosome known as OPN1LW, which codes for a protein that detects visible light in the red spectrum.

For some time, scientists have known that Fragile X is caused by a mutation in a gene, called Fragile X Mental Retardation 1, found on the X chromosome.

Other medical sequencing projects will use DNA sequencing to: discover new genes that are involved in common diseases; identify the genes responsible for dozens of relatively rare, single - gene (autosomal Mendelian) diseases; sequence all of the genes on the X chromosome from affected individuals to identify those involved in sex - linked diseases; and survey the range of variants in genes known to contribute to certain common diseases.

One of the areas that is known is that genetic factors have a powerful contribution to its origins and there have been genes implicated at the last count on all 23 pairs of human chromosomes.

We know a lot about genes that cause intellectual disability on the X chromosome.

The human T cell receptor beta (TRB, previously known as TCRB) gene locus on chromosome 7 (7q34) includes 65 Vb (variable) gene segments, followed by two separate clusters of genes each containing a Db (diversity) gene, several Jb (joining) genes, and a Cb (constant) region spread over 685 kilobases.

a gene or a DNA sequence situated at a known position on a chromosome, which can be used to identify cells or individuals.

Using genetic maps, scientists know that the mutated gene responsible for this tolerance lies on chromosome 1, now they just need to find it.

The findings suggest that a gene on the X chromosome may increase a woman's risk of ovarian cancer, independent of other known risk genes, such as the BRCA genes.