Sentences with phrase «single pair of genes»

Not exact matches

This permits high - resolution mapping of genes and chromosomal regions on single fibers of DNA, and it targets the physical location of mitochondrial DNA probes down to a resolution of 1,000 base pairs.

In these and other inherited diseases, 10 to 15 percent of the single - base pair mutations that cause the disease create a misplaced, premature «stop» codon in the middle of the gene — causing the machinery of the cell to prematurely halt synthesis of the protein, which destroys its ability to function.

Such plants have two mutant copies of a gene called hothead, which differ from the normal gene by a single base pair.

In the U.S., this behavioral division follows a genetic one: workers bearing two copies of one form, or allele, of the Gp - 9 gene live in nests governed by a single matriarch, whereas those that have one copy or a pair of a second allele take orders from a female oligarchy.

Reviewing thousands of genome wide associate studies (GWAS) to identify genetic variants in single nucleotide polymorphisms (SNPs), investigators at Dartmouth's Norris Cotton Cancer Center found that some alleles (one of a pair of genes located on a specific chromosome) are more frequently risk - associated with disease than protective.

The team found that a mutation in a single pair of nucleotides in the gene causes seed coat permeability — that is, a change in one pair out of the approximately 1 billion base pairs that make up the soybean genome.

But in genes, differences as small as a point mutation — the alteration of a single base pair — can lead to disease.

They found up to seven variations of the gene — some differing by as much as 25 % of their base pairs — in a single snail.

They found a point mutation in the gene (a single altered base pair) in one of 91 randomly selected short individuals, and no such mutations in 300 people of average height — suggesting that about 1 % of all short people may carry a SHOX mutation.

Most of the afflicted family members, but none of those who sleep normally, carry a single base - pair mutation in a gene called hPer2, the researchers report 12 January in a paper published online in Science.

A single gene can be hundreds or thousands of base pairs long.

The most radical news at the conference was the first reported use of CRISPR / Cas9 to generate precise genome edits (changing only a single base pair) in two genes, not only in cell lines in vitro, but also in specific tissues of embryos in ovo.

A single DNA base - pair of the PRKAG2 gene was edited using the method developed by Drs. Miyaoka and Conklin.

Forms of variation include single DNA base pair alterations, duplications or deletions of genes or sets of genes, and translocations, a chromosomal rearrangement in which a segment of genetic material from one chromosome becomes heritably linked to another chromosome.

In the first paper, utilizing genomic analysis of nearly 8,500 Icelandic and Dutch participants, the deCODE team identified a novel, tightly - linked pair of single - letter variants (SNPs) near the ASIP (agouti signaling protein) gene on chromosome 20 that greatly increase the likelihood of an individual being prone to freckles and sunburn.

Results: We confirmed the Gallus Gallus v5 consensus except for two insertions of 5 and 1 base pair within the chIFITM3 and B4GALNT4 genes, respectively, and a single base pair deletion within the B4GALNT4 gene.

The mode of inheritance is unknown, but since the blue eyes can be single or a pair and an individual eye may be half - and - half, there probably are either more than one gene involved or there is regulatory DNA that influences the function of the gene (s) that cause this type of blue eye.

Not nearly as simple as those due to a single pair of defective recessive genes that some offspring inherit from their parents.