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* Henry's mutation was a ''[[https://en.wikipedia.org/wiki/De_novo_mutation de novo]]'' mutation (a very rare occurence), while Alba's (and all the ill-fated foetuses' before her) was an inherited one (from Henry). Alba/the foetuses had the gene from their moment of conception, while Henry must have acquired it ''after'' his birth. That made all the difference.
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* Henry's mutation was a ''[[https://en.wikipedia.org/wiki/De_novo_mutation de novo]]'' mutation (a very rare occurence), while Alba's (and all the ill-fated foetuses' before her) was an inherited one (from Henry). Alba/the foetuses had the gene from their moment of conception, while Henry must have acquired it spontaneously ''after'' his birth. That made all the difference.
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* Henry's mutation was a ''[[https://en.wikipedia.org/wiki/De_novo_mutation de novo]]'' mutation (a very rare occurence), while Alba's (and all the ill-fated foetuses' before her) was an inherited one (from Henry). Alba/the foetuses had the gene from their moment of conception, while Henry must have acquired it ''after'' his birth. That made all the difference.
* Clare is obviously NOT a carrier of the gene herself, and the fact that her foetuses DO carry the gene is what causes the problems (explained in the book as "immune system reactions"). Alba IS a carrier of the gene, which would make her situation if she would get pregnant different. The mutation probably would cause female carriers of it to succesfully carry a pregnancy with a foetus that also does have the gene, to term.
* Clare is obviously NOT a carrier of the gene herself, and the fact that her foetuses DO carry the gene is what causes the problems (explained in the book as "immune system reactions"). Alba IS a carrier of the gene, which would make her situation if she would get pregnant different. The mutation probably would cause female carriers of it to succesfully carry a pregnancy with a foetus that also does have the gene, to term.
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Changed line(s) 101,104 (click to see context) from:
** Of course, that's the normal case. You have only a 50% chance of passing any particular gene to any particular child.
There's several key facts: Time travellers must be rare at the time Henry was born- he might in fact be the very first one. Neither of his parents is a time traveler, nor is Clare. His daughter is a time traveler, and the same appears to be the case with the children who miscarried.
There's three main possibilities: If the time travel ability is controlled by a single dominant gene, he must be a mutant, and he has a 50% chance of passing it on to any one of his children - that's the possibility that maximizes that chance.
If it is controlled by a single recessive gene, he must have inherited it from both of his parents, and his daughter could only be a time traveler only if Clare also carries exactly one copy of the gene, in which case there's a 50% chance of passing it on to any one of their children, but the chance of Clare carrying that gene is vanishing small. If it is controlled by the chance combination of two or more genes, there's only a vanishingly small chance that any one of his children would be a time traveler. That would be true even if Clare were also a time traveler.
There's several key facts: Time travellers must be rare at the time Henry was born- he might in fact be the very first one. Neither of his parents is a time traveler, nor is Clare. His daughter is a time traveler, and the same appears to be the case with the children who miscarried.
There's three main possibilities: If the time travel ability is controlled by a single dominant gene, he must be a mutant, and he has a 50% chance of passing it on to any one of his children - that's the possibility that maximizes that chance.
If it is controlled by a single recessive gene, he must have inherited it from both of his parents, and his daughter could only be a time traveler only if Clare also carries exactly one copy of the gene, in which case there's a 50% chance of passing it on to any one of their children, but the chance of Clare carrying that gene is vanishing small. If it is controlled by the chance combination of two or more genes, there's only a vanishingly small chance that any one of his children would be a time traveler. That would be true even if Clare were also a time traveler.
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** Of course, that's the normal case. You have only a 50% chance of passing any particular gene to any particular child.
child. There's several key facts: Time travellers must be rare at the time Henry was born- he might in fact be the very first one. Neither of his parents is a time traveler, nor is Clare. His daughter is a time traveler, and the same appears to be the case with the children who miscarried.
miscarried. There's three main possibilities: If the time travel ability is controlled by a single dominant gene, he must be a mutant, and he has a 50% chance of passing it on to any one of his children - that's the possibility that maximizes that chance.
chance. If it is controlled by a single recessive gene, he must have inherited it from both of his parents, and his daughter could only be a time traveler only if Clare also carries exactly one copy of the gene, in which case there's a 50% chance of passing it on to any one of their children, but the chance of Clare carrying that gene is vanishing small. If it is controlled by the chance combination of two or more genes, there's only a vanishingly small chance that any one of his children would be a time traveler. That would be true even if Clare were also a time traveler.
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Changed line(s) 101,109 (click to see context) from:
* Of course, that's the normal case. You have only a 50% chance of passing any particular gene to any particular child.
There's several key facts:
1. Time travellers must be rare at the time he was born- he might in fact be the very first one.
2. Neither of his parents is a time traveler, nor is Clare.
3. His daughter is a time traveler
There's three main possibilities:
1. The time travel ability is controlled by a single dominant gene. In that case, he must be a mutant, and he has a 50% chance of passing it on to any one of his children. That's the possibility that maximizes that chance.
2. It is controlled by a single recessive gene. He must have inherited it from both of his parents, and his daughter could only be a time traveler only if Clare also carries exactly one copy of the gene, in which case there's a 50% chance of passing it on to any one of their children, but the chance of Clare carrying that gene is vanishing small.
3. It is controlled by the chance combination of two or more genes, in which case there's only a vanishing small chance of any one of his children being a time traveler. That would be true even if Clare were also a time traveler.
There's several key facts:
1. Time travellers must be rare at the time he was born- he might in fact be the very first one.
2. Neither of his parents is a time traveler, nor is Clare.
3. His daughter is a time traveler
There's three main possibilities:
1. The time travel ability is controlled by a single dominant gene. In that case, he must be a mutant, and he has a 50% chance of passing it on to any one of his children. That's the possibility that maximizes that chance.
2. It is controlled by a single recessive gene. He must have inherited it from both of his parents, and his daughter could only be a time traveler only if Clare also carries exactly one copy of the gene, in which case there's a 50% chance of passing it on to any one of their children, but the chance of Clare carrying that gene is vanishing small.
3. It is controlled by the chance combination of two or more genes, in which case there's only a vanishing small chance of any one of his children being a time traveler. That would be true even if Clare were also a time traveler.
to:
There's several key
1.
2.
3.
There's three main
1. The
3. It
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Added DiffLines:
* Of course, that's the normal case. You have only a 50% chance of passing any particular gene to any particular child.
There's several key facts:
1. Time travellers must be rare at the time he was born- he might in fact be the very first one.
2. Neither of his parents is a time traveler, nor is Clare.
3. His daughter is a time traveler
There's three main possibilities:
1. The time travel ability is controlled by a single dominant gene. In that case, he must be a mutant, and he has a 50% chance of passing it on to any one of his children. That's the possibility that maximizes that chance.
2. It is controlled by a single recessive gene. He must have inherited it from both of his parents, and his daughter could only be a time traveler only if Clare also carries exactly one copy of the gene, in which case there's a 50% chance of passing it on to any one of their children, but the chance of Clare carrying that gene is vanishing small.
3. It is controlled by the chance combination of two or more genes, in which case there's only a vanishing small chance of any one of his children being a time traveler. That would be true even if Clare were also a time traveler.
There's several key facts:
1. Time travellers must be rare at the time he was born- he might in fact be the very first one.
2. Neither of his parents is a time traveler, nor is Clare.
3. His daughter is a time traveler
There's three main possibilities:
1. The time travel ability is controlled by a single dominant gene. In that case, he must be a mutant, and he has a 50% chance of passing it on to any one of his children. That's the possibility that maximizes that chance.
2. It is controlled by a single recessive gene. He must have inherited it from both of his parents, and his daughter could only be a time traveler only if Clare also carries exactly one copy of the gene, in which case there's a 50% chance of passing it on to any one of their children, but the chance of Clare carrying that gene is vanishing small.
3. It is controlled by the chance combination of two or more genes, in which case there's only a vanishing small chance of any one of his children being a time traveler. That would be true even if Clare were also a time traveler.
