How can one individual have two different biological signatures?











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A detective is investigating a series of grisly murders in New York. The bodies of the victins seem to have been ripped apart by a inhumanely strong person. He has narrowed down the list of suspects to one individual, Henry Jekyll, a scientist working out of a lab in Queens.



He secretly follows Jekyll in order to gather evidence against him. On one night, he sees Jekyll drink some concoction taken from his coat, which turns him into a freakishly large man, and kill a prostitute. He collects DNA samples of the man (blood, hair, fingerprints,), but results don't provide a match for Jekyll. The detective obtains a warrant to search the doctor's premises, locating a dairy describing his actions as of late. The journals detail the doctors experiments of how he invented a concoction that allows him to bring his darker nature to the surface, allowing him to indulge in his vices without guilt or fear of discovery.



If the doctor and this other person are the same, how can it be that they don't share the same DNA?










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    up vote
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    down vote

    favorite












    A detective is investigating a series of grisly murders in New York. The bodies of the victins seem to have been ripped apart by a inhumanely strong person. He has narrowed down the list of suspects to one individual, Henry Jekyll, a scientist working out of a lab in Queens.



    He secretly follows Jekyll in order to gather evidence against him. On one night, he sees Jekyll drink some concoction taken from his coat, which turns him into a freakishly large man, and kill a prostitute. He collects DNA samples of the man (blood, hair, fingerprints,), but results don't provide a match for Jekyll. The detective obtains a warrant to search the doctor's premises, locating a dairy describing his actions as of late. The journals detail the doctors experiments of how he invented a concoction that allows him to bring his darker nature to the surface, allowing him to indulge in his vices without guilt or fear of discovery.



    If the doctor and this other person are the same, how can it be that they don't share the same DNA?










    share|improve this question


























      up vote
      6
      down vote

      favorite









      up vote
      6
      down vote

      favorite











      A detective is investigating a series of grisly murders in New York. The bodies of the victins seem to have been ripped apart by a inhumanely strong person. He has narrowed down the list of suspects to one individual, Henry Jekyll, a scientist working out of a lab in Queens.



      He secretly follows Jekyll in order to gather evidence against him. On one night, he sees Jekyll drink some concoction taken from his coat, which turns him into a freakishly large man, and kill a prostitute. He collects DNA samples of the man (blood, hair, fingerprints,), but results don't provide a match for Jekyll. The detective obtains a warrant to search the doctor's premises, locating a dairy describing his actions as of late. The journals detail the doctors experiments of how he invented a concoction that allows him to bring his darker nature to the surface, allowing him to indulge in his vices without guilt or fear of discovery.



      If the doctor and this other person are the same, how can it be that they don't share the same DNA?










      share|improve this question















      A detective is investigating a series of grisly murders in New York. The bodies of the victins seem to have been ripped apart by a inhumanely strong person. He has narrowed down the list of suspects to one individual, Henry Jekyll, a scientist working out of a lab in Queens.



      He secretly follows Jekyll in order to gather evidence against him. On one night, he sees Jekyll drink some concoction taken from his coat, which turns him into a freakishly large man, and kill a prostitute. He collects DNA samples of the man (blood, hair, fingerprints,), but results don't provide a match for Jekyll. The detective obtains a warrant to search the doctor's premises, locating a dairy describing his actions as of late. The journals detail the doctors experiments of how he invented a concoction that allows him to bring his darker nature to the surface, allowing him to indulge in his vices without guilt or fear of discovery.



      If the doctor and this other person are the same, how can it be that they don't share the same DNA?







      science-based science-fiction crime






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      edited 1 hour ago









      Renan

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          Dude is a biological chimera:




          A genetic chimerism or chimera (/kɪˈmɪərə/ or /kaɪˈmɪərə/, also chimaera (chimæra) is a single organism composed of cells with distinct genotypes. In animals, this means an individual derived from two or more zygotes, which can include possessing blood cells of different blood types, subtle variations in form (phenotype) and, if the zygotes were of differing sexes, then even the possession of both female and male sex organs[1] (...) Animal chimeras are produced by the merger of multiple fertilized eggs.




          The fact that the first DNA sampling came out as a negative was just luck of the draw. Sherlock got a sample from one of the criminal's genotypes and compared it to the other by chance.





          As for the fingerprints: it's usual for a crime scene to have the fingerprints of everyone who had been in there before the place got isolated, and the prostitute may have been visited by multiple clients (or it was a public place). The fact that they couldn't find a fingerprint match is a sign the detective did a sloppy job of comparing just the very first fingerprint they found to Jekyll's. That, or the suspect wore gloves.






          share|improve this answer



















          • 1




            Damn, you were faster. The phenomenon is also called the Vanishing Twin Syndrome and there has been a case where a mother was accused of abducting her own child because her ovaries had the DNA of her vanished twin sister and the maternity test concluded she was not the biological mother of the child that grew in her own womb.
            – Elmy
            1 hour ago












          • Came here just to suggest this, saw that I got beaten to the draw. Upvoted
            – QWriter
            1 hour ago






          • 1




            Exactly my thoughts. I remember this from one episode of CSI: Bloodlines and there is a lot of other examples in fiction for references.
            – kikirex
            1 hour ago










          • So he becomes a biological chimera after drinking a potion. I can follow to this point. But how did he regain his first DNA?
            – Jannis
            1 hour ago






          • 2




            @Jannis Jekyll was a mix of 2 different DNAs from birth. Your detective accidently took the first sample from a patch of skin that had a different DNA from the inside of his mouth, where official samples are usually taken. The potion never changed his DNA.
            – Elmy
            7 mins ago













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          up vote
          9
          down vote













          Dude is a biological chimera:




          A genetic chimerism or chimera (/kɪˈmɪərə/ or /kaɪˈmɪərə/, also chimaera (chimæra) is a single organism composed of cells with distinct genotypes. In animals, this means an individual derived from two or more zygotes, which can include possessing blood cells of different blood types, subtle variations in form (phenotype) and, if the zygotes were of differing sexes, then even the possession of both female and male sex organs[1] (...) Animal chimeras are produced by the merger of multiple fertilized eggs.




          The fact that the first DNA sampling came out as a negative was just luck of the draw. Sherlock got a sample from one of the criminal's genotypes and compared it to the other by chance.





          As for the fingerprints: it's usual for a crime scene to have the fingerprints of everyone who had been in there before the place got isolated, and the prostitute may have been visited by multiple clients (or it was a public place). The fact that they couldn't find a fingerprint match is a sign the detective did a sloppy job of comparing just the very first fingerprint they found to Jekyll's. That, or the suspect wore gloves.






          share|improve this answer



















          • 1




            Damn, you were faster. The phenomenon is also called the Vanishing Twin Syndrome and there has been a case where a mother was accused of abducting her own child because her ovaries had the DNA of her vanished twin sister and the maternity test concluded she was not the biological mother of the child that grew in her own womb.
            – Elmy
            1 hour ago












          • Came here just to suggest this, saw that I got beaten to the draw. Upvoted
            – QWriter
            1 hour ago






          • 1




            Exactly my thoughts. I remember this from one episode of CSI: Bloodlines and there is a lot of other examples in fiction for references.
            – kikirex
            1 hour ago










          • So he becomes a biological chimera after drinking a potion. I can follow to this point. But how did he regain his first DNA?
            – Jannis
            1 hour ago






          • 2




            @Jannis Jekyll was a mix of 2 different DNAs from birth. Your detective accidently took the first sample from a patch of skin that had a different DNA from the inside of his mouth, where official samples are usually taken. The potion never changed his DNA.
            – Elmy
            7 mins ago

















          up vote
          9
          down vote













          Dude is a biological chimera:




          A genetic chimerism or chimera (/kɪˈmɪərə/ or /kaɪˈmɪərə/, also chimaera (chimæra) is a single organism composed of cells with distinct genotypes. In animals, this means an individual derived from two or more zygotes, which can include possessing blood cells of different blood types, subtle variations in form (phenotype) and, if the zygotes were of differing sexes, then even the possession of both female and male sex organs[1] (...) Animal chimeras are produced by the merger of multiple fertilized eggs.




          The fact that the first DNA sampling came out as a negative was just luck of the draw. Sherlock got a sample from one of the criminal's genotypes and compared it to the other by chance.





          As for the fingerprints: it's usual for a crime scene to have the fingerprints of everyone who had been in there before the place got isolated, and the prostitute may have been visited by multiple clients (or it was a public place). The fact that they couldn't find a fingerprint match is a sign the detective did a sloppy job of comparing just the very first fingerprint they found to Jekyll's. That, or the suspect wore gloves.






          share|improve this answer



















          • 1




            Damn, you were faster. The phenomenon is also called the Vanishing Twin Syndrome and there has been a case where a mother was accused of abducting her own child because her ovaries had the DNA of her vanished twin sister and the maternity test concluded she was not the biological mother of the child that grew in her own womb.
            – Elmy
            1 hour ago












          • Came here just to suggest this, saw that I got beaten to the draw. Upvoted
            – QWriter
            1 hour ago






          • 1




            Exactly my thoughts. I remember this from one episode of CSI: Bloodlines and there is a lot of other examples in fiction for references.
            – kikirex
            1 hour ago










          • So he becomes a biological chimera after drinking a potion. I can follow to this point. But how did he regain his first DNA?
            – Jannis
            1 hour ago






          • 2




            @Jannis Jekyll was a mix of 2 different DNAs from birth. Your detective accidently took the first sample from a patch of skin that had a different DNA from the inside of his mouth, where official samples are usually taken. The potion never changed his DNA.
            – Elmy
            7 mins ago















          up vote
          9
          down vote










          up vote
          9
          down vote









          Dude is a biological chimera:




          A genetic chimerism or chimera (/kɪˈmɪərə/ or /kaɪˈmɪərə/, also chimaera (chimæra) is a single organism composed of cells with distinct genotypes. In animals, this means an individual derived from two or more zygotes, which can include possessing blood cells of different blood types, subtle variations in form (phenotype) and, if the zygotes were of differing sexes, then even the possession of both female and male sex organs[1] (...) Animal chimeras are produced by the merger of multiple fertilized eggs.




          The fact that the first DNA sampling came out as a negative was just luck of the draw. Sherlock got a sample from one of the criminal's genotypes and compared it to the other by chance.





          As for the fingerprints: it's usual for a crime scene to have the fingerprints of everyone who had been in there before the place got isolated, and the prostitute may have been visited by multiple clients (or it was a public place). The fact that they couldn't find a fingerprint match is a sign the detective did a sloppy job of comparing just the very first fingerprint they found to Jekyll's. That, or the suspect wore gloves.






          share|improve this answer














          Dude is a biological chimera:




          A genetic chimerism or chimera (/kɪˈmɪərə/ or /kaɪˈmɪərə/, also chimaera (chimæra) is a single organism composed of cells with distinct genotypes. In animals, this means an individual derived from two or more zygotes, which can include possessing blood cells of different blood types, subtle variations in form (phenotype) and, if the zygotes were of differing sexes, then even the possession of both female and male sex organs[1] (...) Animal chimeras are produced by the merger of multiple fertilized eggs.




          The fact that the first DNA sampling came out as a negative was just luck of the draw. Sherlock got a sample from one of the criminal's genotypes and compared it to the other by chance.





          As for the fingerprints: it's usual for a crime scene to have the fingerprints of everyone who had been in there before the place got isolated, and the prostitute may have been visited by multiple clients (or it was a public place). The fact that they couldn't find a fingerprint match is a sign the detective did a sloppy job of comparing just the very first fingerprint they found to Jekyll's. That, or the suspect wore gloves.







          share|improve this answer














          share|improve this answer



          share|improve this answer








          edited 36 mins ago

























          answered 1 hour ago









          Renan

          41.7k1194210




          41.7k1194210








          • 1




            Damn, you were faster. The phenomenon is also called the Vanishing Twin Syndrome and there has been a case where a mother was accused of abducting her own child because her ovaries had the DNA of her vanished twin sister and the maternity test concluded she was not the biological mother of the child that grew in her own womb.
            – Elmy
            1 hour ago












          • Came here just to suggest this, saw that I got beaten to the draw. Upvoted
            – QWriter
            1 hour ago






          • 1




            Exactly my thoughts. I remember this from one episode of CSI: Bloodlines and there is a lot of other examples in fiction for references.
            – kikirex
            1 hour ago










          • So he becomes a biological chimera after drinking a potion. I can follow to this point. But how did he regain his first DNA?
            – Jannis
            1 hour ago






          • 2




            @Jannis Jekyll was a mix of 2 different DNAs from birth. Your detective accidently took the first sample from a patch of skin that had a different DNA from the inside of his mouth, where official samples are usually taken. The potion never changed his DNA.
            – Elmy
            7 mins ago
















          • 1




            Damn, you were faster. The phenomenon is also called the Vanishing Twin Syndrome and there has been a case where a mother was accused of abducting her own child because her ovaries had the DNA of her vanished twin sister and the maternity test concluded she was not the biological mother of the child that grew in her own womb.
            – Elmy
            1 hour ago












          • Came here just to suggest this, saw that I got beaten to the draw. Upvoted
            – QWriter
            1 hour ago






          • 1




            Exactly my thoughts. I remember this from one episode of CSI: Bloodlines and there is a lot of other examples in fiction for references.
            – kikirex
            1 hour ago










          • So he becomes a biological chimera after drinking a potion. I can follow to this point. But how did he regain his first DNA?
            – Jannis
            1 hour ago






          • 2




            @Jannis Jekyll was a mix of 2 different DNAs from birth. Your detective accidently took the first sample from a patch of skin that had a different DNA from the inside of his mouth, where official samples are usually taken. The potion never changed his DNA.
            – Elmy
            7 mins ago










          1




          1




          Damn, you were faster. The phenomenon is also called the Vanishing Twin Syndrome and there has been a case where a mother was accused of abducting her own child because her ovaries had the DNA of her vanished twin sister and the maternity test concluded she was not the biological mother of the child that grew in her own womb.
          – Elmy
          1 hour ago






          Damn, you were faster. The phenomenon is also called the Vanishing Twin Syndrome and there has been a case where a mother was accused of abducting her own child because her ovaries had the DNA of her vanished twin sister and the maternity test concluded she was not the biological mother of the child that grew in her own womb.
          – Elmy
          1 hour ago














          Came here just to suggest this, saw that I got beaten to the draw. Upvoted
          – QWriter
          1 hour ago




          Came here just to suggest this, saw that I got beaten to the draw. Upvoted
          – QWriter
          1 hour ago




          1




          1




          Exactly my thoughts. I remember this from one episode of CSI: Bloodlines and there is a lot of other examples in fiction for references.
          – kikirex
          1 hour ago




          Exactly my thoughts. I remember this from one episode of CSI: Bloodlines and there is a lot of other examples in fiction for references.
          – kikirex
          1 hour ago












          So he becomes a biological chimera after drinking a potion. I can follow to this point. But how did he regain his first DNA?
          – Jannis
          1 hour ago




          So he becomes a biological chimera after drinking a potion. I can follow to this point. But how did he regain his first DNA?
          – Jannis
          1 hour ago




          2




          2




          @Jannis Jekyll was a mix of 2 different DNAs from birth. Your detective accidently took the first sample from a patch of skin that had a different DNA from the inside of his mouth, where official samples are usually taken. The potion never changed his DNA.
          – Elmy
          7 mins ago






          @Jannis Jekyll was a mix of 2 different DNAs from birth. Your detective accidently took the first sample from a patch of skin that had a different DNA from the inside of his mouth, where official samples are usually taken. The potion never changed his DNA.
          – Elmy
          7 mins ago




















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