copy number

基本解釋

Recently geneticists have taken a closer look at a genetic aberration previously considered rare: copy number variation (CNV).
最近遺傳學(xué)家對(duì)以前被認(rèn)為很罕見(jiàn)的遺傳變異：拷貝數(shù)變異（copy number variation ，CNV）進(jìn)行了更細(xì)致的研究。
“The copy number variation that researchers had seen before was simply the tip of the iceberg, while the bulk lay submerged, undetected,” said Dr Hurles.
“研究人員以前看到的復(fù)制數(shù)量變化只是冰山一角，而其絕大部分都還未浮出水面，未被發(fā)現(xiàn)，”赫爾斯博士說(shuō)。
Their study looked for chromosomal deletions and duplications known as copy number variants (CNV) and found that these were present in 16% of the children with ADHD.
他們研究被稱為拷貝數(shù)變異（CNV）的染色體的刪減和復(fù)制，發(fā)現(xiàn)在患有多動(dòng)癥的兒童中有 16% 都存在。

For example, a recent (2007) study by Sebat et al. found a clear link between ASD and de novo copy number variation (de novo mutations are those that arise for the first time in the children).
FORBES: Vaccine Court Ruling: Thimerosal Does Not Cause Autism
Consumers using one of the Web sites were asked to provide personal information and a valid credit card number to get a copy of their credit report.
FORBES: A Fine Print Fine
My first copy of Aldus PageMaker was serial number 441.
FORBES: Personal Thoughts About Steve Jobs

拷貝數(shù)
0.8 and 1.2 were chosen as thresholds for the identification of DNA copy number decreases (below 0.8) and increases (above 1.2).
按通用的標(biāo)準(zhǔn)認(rèn)為，比值低于0.8有DNA拷貝數(shù)降低，大于1.2有DNA拷貝數(shù)增加。
農(nóng)業(yè)科學(xué)
拷貝數(shù)
Mitochondrial DNA copy number of 44 h was(130 074.30±78 119.45),which was significantly higher than that of 33 h(P
卵母細(xì)胞成熟44h的mtDNA拷貝數(shù)為(130 074.30±78 119.45),顯著高于成熟33h的mtDNA拷貝數(shù)(P
生物學(xué)
拷貝數(shù)