阿摩線上測驗
14. Which of the following conclusions can be drawn from the passage?
(A) DNA can be collected from sources other than blood.
(B) DNA can be collected only from bloodstains.
(C) DNA cannot be collected from bloodstains.
(D) DNA can connect crime scenes only if it is taken from bloodstains.
答案：登入後查看
統計： A(617), B(70), C(50), D(156), E(0) #1829959
統計： A(617), B(70), C(50), D(156), E(0) #1829959
詳解 (共 3 筆)
說走就走
#3288216
DNA是一種強大的調查工具，因為沒有兩個人擁有相同的DNA。科學家發現的唯一例外是同卵雙胞胎。 DNA構建塊的序列或順序在細胞的特定區域是不同的，使得每個人的DNA是獨特的。因此，在犯罪現場收集的DNA證據可以將嫌疑人與犯罪聯繫起來，或者可以消除某人的懷疑。 DNA類似於指紋，但在過去十年中被認為更準確。如果無法找到受害者的身體，DNA也可以通過使用親屬的DNA將證據與受害者聯繫起來。例如，如果技術人員有來自受害者的生物樣本，例如在犯罪現場發現的血跡，則可以將從該血跡中取出的DNA與受害者生物親屬的DNA進行比較，以確定該血跡是否來自該特定受害者。當根據一個犯罪現場的證據開發出的DNA特徵與從另一個犯罪現場發現的證據開發的DNA特徵進行比較時，這些犯罪可以相互關聯或與同一個嫌疑人相關聯，從而可以將遠處犯下的罪行聯繫起來。彼此n 雖然許多法醫科學家已經開始將DNA視為奇蹟識別，但在2009年，科學家們首次發現，有可能從血液或唾液供體以外的人那裡製造DNA證據。這意味著有人可以在犯罪現場種植另一個人的DNA，導致被發現DNA的人被視為案件的主要嫌疑人。雖然這並不意味著DNA證據將不再重要，但它強化了解決犯罪必須繼續依靠科學來尋找一個有罪的政黨。
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骨頭（四等一般警特正取）
#3681021
DNA is a powerful investigative tool because no two people have the same DNA.
The only exception除外的人；例外的事物 scientists have found to this is identical完全相同的；極為相似 twins.
The sequence順序, or order, of the DNA building blocks is different in particular regions of the cell, making each person’s DNA unique.
Because of this, DNA evidence collected at the scene of a crime can link a suspect to the crime or can eliminate someone from suspicion.
DNA is similar to fingerprints, but has been considered more accurate for the past decade.
DNA can also link evidence to a victim by using DNA of relatives if the victim’s body cannot be found.
For example, if technicians have a biological sample from the victim, such as a bloodstain found at the crime scene, the DNA taken from that bloodstain can be compared with比較DNA from the victim’s biological relatives to determine確定 whether the bloodstain came from that particular victim.
When a DNA profile輪廓 developed from evidence at one crime scene is compared with a DNA profile輪廓 developed from evidence found at another crime scene, the crimes can be linked to each other or to the same suspect, making it possible to link crimes committed at a distance from one another.
Although many forensic法醫 scientists had begun to think of DNA as a miracle identifier检验人, in 2009, scientists for the first time found that it was possible to fabricate捏造，虛構；偽造 DNA evidence from a person other than the donor捐贈者 of the blood or the saliva唾液.
This means that someone could plant another person’s DNA at a crime scene, causing the person whose DNA was found to be considered a prime首要的，主要 suspect in a case.
While this does not mean that DNA evidence will no longer be important, it reinforces加固；使更結實, 強化 that solving crimes must continue to rely on more than science to find a guilty party.
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