History Main / DaddyDNATest

12th Sep '16 7:09:53 PM VanHohenheimOfXerxes
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This trope can also occur with mothers, but that's a much rarer occurrence (barring a babynapping, a switcheroo with a different newborn, or a delivery while the woman is unconscious, the mother knows the baby she just birthed is her own). This test can also be used indirectly to link siblings together. In any case, how long it takes for the DNA test to get finished typically depends on the speed of the [[TravellingAtTheSpeedOfPlot plot]]. The DNA test could present complications: if the bad guys know about the test, they may attempt to keep the [[StatusQuoIsGod Status Quo]] by altering the test results (of course, they must [[KeepingSecretsSucks force other characters into secrecy]] about that, and in any case [[TheReveal it won't last for long]]).

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This trope can also occur with mothers, but that's a much rarer occurrence (barring a babynapping, a [[SwitchedAtBirth switcheroo with a different newborn, newborn]], or a delivery while the woman is unconscious, the mother knows the baby she just birthed is her own). This test can also be used indirectly to link siblings together. In any case, how long it takes for the DNA test to get finished typically depends on the speed of the [[TravellingAtTheSpeedOfPlot plot]]. The DNA test could present complications: if the bad guys know about the test, they may attempt to keep the [[StatusQuoIsGod Status Quo]] by altering the test results (of course, they must [[KeepingSecretsSucks force other characters into secrecy]] about that, and in any case [[TheReveal it won't last for long]]).
31st Aug '16 2:15:14 PM lorgskyegon
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** Amusingly enough, the man House presumed to be his biological father also wasn't. Meaning his mother had [[ReallyGetsAround ''at least'' one more affair.]]
10th Aug '16 1:34:50 PM Luc
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* ''Series/BostonLegal'': A man who was born out of artificial insemination was dating a woman who was born the same way and they were afraid of being [[BrotherSisterIncest half-siblings]]. To learn if they had the same father or not, they sued the lab to force them to tell because a DNA test using only the couple's blood would be inconclusive if they were half-siblings or complete strangers. (Whether this counts as a case of DidNotDoTheResearch or just "Because The Plot Demanded It", it's still scientifically incorrect: Half-siblings should be a roughly 25% genetic match, and as such, fairly easy for a DNA test to catch, particularly if they have DNA from either of their mothers.)

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* ''Series/BostonLegal'': A man who was born out of artificial insemination was dating a woman who was born the same way and they were afraid of being [[BrotherSisterIncest half-siblings]]. To learn if they had the same father or not, they sued the lab to force them to tell because a DNA test using only the couple's blood would be inconclusive if they were half-siblings or complete strangers. (Whether this counts as a case of DidNotDoTheResearch [[DanBrowned the writers failing to do the research]] or just [[ArtisticLicense "Because The Plot Demanded It", It"]], it's still scientifically incorrect: Half-siblings should be a roughly 25% genetic match, and as such, fairly easy for a DNA test to catch, particularly if they have DNA from either of their mothers.)
10th Aug '16 12:18:01 PM Luc
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* ''Series/BostonLegal'': A man who was born out of artificial insemination was dating a woman who was born the same way and they were afraid of being [[BrotherSisterIncest half-siblings]]. To learn if they had the same father or not, they sued the lab to force them to tell because a DNA test using only the couple's blood would be inconclusive if they were half-siblings or complete strangers.

to:

* ''Series/BostonLegal'': A man who was born out of artificial insemination was dating a woman who was born the same way and they were afraid of being [[BrotherSisterIncest half-siblings]]. To learn if they had the same father or not, they sued the lab to force them to tell because a DNA test using only the couple's blood would be inconclusive if they were half-siblings or complete strangers. (Whether this counts as a case of DidNotDoTheResearch or just "Because The Plot Demanded It", it's still scientifically incorrect: Half-siblings should be a roughly 25% genetic match, and as such, fairly easy for a DNA test to catch, particularly if they have DNA from either of their mothers.)
9th Aug '16 11:50:15 AM tromag
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Added DiffLines:

* In GilmoreGirls, April shows up at Luke's one day, tells him that she's the daughter of his old girlfriend, and asks for a DNA sample. The unique part is that she only wants to do the test as a science project. The bigger implications of identifying her father seem lost on her at that point.
20th Jul '16 6:59:17 AM matruz
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* ''Manga/NarutoGaiden'' does a ''Mommy'' [[=DNA=]] Test, when Sasuke's daughter, Sarada, begins to suspect that her father's former teammate, Karin, may be her real mother. The [[=DNA=]] test comes out positive, seemingly confirming this. [[spoiler: But it later turns out that the test was positive because the umbilical cord used as a sample for it was actually Sarada's, not Karin's, so Sakura was Sarada's biological mother all along]].

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* ''Manga/NarutoGaiden'' does a ''Mommy'' [[=DNA=]] [=DNA=] Test, when Sasuke's daughter, Sarada, begins to suspect that her father's former teammate, Karin, may be her real mother. The [[=DNA=]] [=DNA=] test comes out positive, seemingly confirming this. [[spoiler: But it later turns out that the test was positive because the umbilical cord used as a sample for it was actually Sarada's, not Karin's, so Sakura was Sarada's biological mother all along]].
20th Jul '16 6:59:01 AM matruz
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[[folder:{{Anime}}]]

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[[folder:{{Anime}}]][[folder:{{Anime}} and {{Manga}}]]


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* ''Manga/NarutoGaiden'' does a ''Mommy'' [[=DNA=]] Test, when Sasuke's daughter, Sarada, begins to suspect that her father's former teammate, Karin, may be her real mother. The [[=DNA=]] test comes out positive, seemingly confirming this. [[spoiler: But it later turns out that the test was positive because the umbilical cord used as a sample for it was actually Sarada's, not Karin's, so Sakura was Sarada's biological mother all along]].
8th Jul '16 12:11:06 AM jormis29
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* In ''WesternAnimation/TheBoondocks'' episode "The Story of Lando Freeman", Robert Freeman goes on ''The Steve Wilkos Show'', where a DNA test reveals that [[spoiler:the titular Lando is his long-lost sonů but this is subverted by the reveal that they lied about the test results on camera, only putting a disclaimer in the credits. Lando's real father is Billy Dee Williams.]]

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* In ''WesternAnimation/TheBoondocks'' episode "The Story of Lando Freeman", Robert Freeman goes on ''The Steve Wilkos Show'', ''Series/TheSteveWilkosShow'', where a DNA test reveals that [[spoiler:the titular Lando is his long-lost sonů but this is subverted by the reveal that they lied about the test results on camera, only putting a disclaimer in the credits. Lando's real father is Billy Dee Williams.]]
26th May '16 4:45:06 AM ChronoLegion
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* ''Film/BabyMama'' actually has the inverse with a court ordered maternity test. The premise of the movie was that a surrogate mother is artificially impregnated using the other woman's egg and her own husband's sperm. The test is because she has the child rather late after the egg was inserted and it's unclear who the biological mother is.

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* ''Film/BabyMama'' actually has the inverse with a court ordered maternity test. The premise of the movie was that a surrogate mother is artificially impregnated using the other woman's egg and her own husband's sperm. The test is because she has the child rather late after the egg was inserted and it's unclear who the biological mother is. [[spoiler:It turns out to be the surrogate mother's, but it's okay, because she gets pregnant herself by her new boyfriend]].
26th May '16 4:43:02 AM ChronoLegion
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* The titular heroine of ''Series/VeronicaMars'' suspects at one point that her real father is her ex-boyfriend Duncan's dad, so she runs a paternity test, which [[UnReveal she shreds without reading]], deciding she doesn't need to know. Later in the season, Keith Mars has his own test done, [[spoiler:which confirms that he is, after all, her real father]].

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* The titular heroine of ''Series/VeronicaMars'' suspects at one point that her real father is her ex-boyfriend Duncan's dad, so she runs a paternity test, which [[UnReveal she shreds without reading]], deciding she doesn't need to know. Later in the season, Keith Mars has his own test done, [[spoiler:which confirms that he is, after all, her real father]]. This is also why [[spoiler:Duncan doesn't talk about the night he and Veronica (who was drunk and roofied at the time) had sex for the first time. He assumes it's because both of them are ashamed of BrotherSisterIncest. In fact, Veronica simply doesn't remember]].
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http://tvtropes.org/pmwiki/article_history.php?article=Main.DaddyDNATest