If changing conditions favor, say, tallness, then tall people will have more offspring, and
more copies of variants that code for tallness will circulate in the population.
Not exact matches
The researchers are analyzing
more patient samples looking for additional cases
of multiple
copy number
variants to continue their investigation
of what may trigger this rare phenomenon.
More than one quarter
of children with two
copies of a high - risk
variant in a specific group
of genes develop an early sign
of celiac disease called celiac disease autoimmunity (CDA) by age 5.
Subsequent research has established that carrying two
copies of the harmful
variant increases risk 12 times compared with having two
copies of the
more common form, APOE3.
For the particular
variant of interest, one version, the T allele is
more common, and
of 196 patients, 135 had two
copies of the T allele.
And children with two
copies of the R
variant will make
more alpha - actinin - 3, setting them up for possible achievement in power or endurance sports including football, weight - lifting or sprinting.
In the lifestyle modification group, however, even individuals with two
copies of the
variant were no
more likely to develop type 2 diabetes than participants without the
variant, the team reports 20 July in the New England Journal
of Medicine.
The researchers found that participants in the control group with two
copies of the
variant were 80 %
more likely to develop the disease than those without the
variant.
With its large sample size, this study had the power to find
copy number
variants with large effects that occur in
more than 0.1 percent
of schizophrenia cases.
The researchers found that people who have
more copies of the gene
variants (by inheriting a
copy of each advantageous
variant from both parents), had the least amount
of oxygen in their blood and used it
more efficiently than people without either
variant, or only one
copy from one parent.
The researchers also found that these
copy number
variants occurred
more frequently in genes involved in the function
of synapses, the connections between brain cells that transmit chemical messages.
The investigators found that people who carry a single
copy of the KL - VS
variant of the KLOTHO gene, roughly 20 percent
of the population, have
more klotho protein in their blood than non-carriers.
Those with one
copy of the
variant are at
more than 30 % greater likelihood
of developing BCC than those who do not carry the
variant, while those who carry two
copies are at
more than 50 % greater risk.
«The
variant that we discovered is common: Most people have one or two
copies of the version
of the gene that is linked to accumulating
more pathology as you get older,» said lead author Dr. Lori Chibnik
of Brigham and Women's Hospital.
Molecular profiling
of large tumour numbers has also allowed the annotation
of more than 13 million non-coding mutations, 18 029 gene fusions, 187 429 genome rearrangements, 1 271 436 abnormal
copy number segments, 9 175 462 abnormal expression
variants and 7 879 142 differentially methylated CpG dinucleotides.
Ford C - Max Energi: While the Fusion Energi posted a surprisingly high number
of its own, the 988 C - Max Energis sold in June was even
more significant... considering the non plug - in
variant of the C - Mas only sold 1,952
copies.
Publishing DC's 52 -
variant - cover gimmick with Justice League
of America # 1 seems to have paid off, as ICv2 estimates Diamond Comic Distributors sold
more than 300,000
copies to comics shops last month.
This means that dogs with a single
copy (Sn)
of the MITF
variant will express a limited white spotting pattern, while dogs that have 2
copies (SS)
of the
variant will exhibit
more white with very little color.
«Rather than take these «doubles» and «triples» as evidence
of an iconoclastic modernist mindset — like, say, a forerunner
of Andy Warhol's proliferating pop culture symbols — it may be
more appropriate to locate them in the lineage
of Titian or Rembrandt, both
of whom made thoughtful
copies or
variants of the same subject,» says David Anfam.