Questions tagged [genetics]

For questions about a way to pass on biological information from one generation to the next.

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7
votes
4answers
1k views

How much genetic variation between a human and an alien would allow the human and alien to have, even infertile, offspring?

Background: Human Origins: We originated from a space-faring civilization. A breakaway faction that hates advanced space level tech traveled here and set up shop before destroying their advanced ...
3
votes
3answers
373 views

What if a person can bear a child that is genetically identical to its parent?

We all know that genetic diversity in our species (homo sapiens) is maintained by sexual reproduction. Man and woman provide each half of genetic information randomly selected from their own to their ...
9
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5answers
5k views

Could someone survive if all the DNA inside his cells got damaged? For how long?

I did some quick research on DNA and I know it can be damaged by different sorts of mutagens. I also know that this kind of damage can lead to cancer. Though I'm not entirely sure of where exactly it ...
13
votes
4answers
8k views

Improving human reaction time

In this question, we were provided a look at what would happen if a human-like species was capable of moving faster than the speed of sound. The consequences of such a modification seem rather ...
7
votes
9answers
953 views

Same species originating from multiple planets?

Like the title states, how would it be possible for the same species to live on multiple planets (before space travel is invented)? Basically, a civilization invents space travel, meets aliens, and ...
9
votes
11answers
4k views

How would a child of a human and alien inherit abilities?

Imagine a child of mixed race, one parent is human and one is an alien who has some ability humans do not have, for the sake of argument telepathy. I'm assuming there is some advanced medical ...
11
votes
4answers
595 views

What is the technical feasibility of DNA-altering drinks in a fictional bar?

I am interested of a fictional future world where people can walk into a bar, order a drink with the flavors they want, and as that drink flows through their system, their DNA is modified. An example ...
28
votes
10answers
2k views

How can I make a net beneficial genetic trait occur only in a small fraction of the population, sustained?

For a species I am working on, there is a specific genetic trait that I want to introduce into the population. The exact nature of either is not important for the purposes of this question, but the ...
4
votes
1answer
492 views

Will humans ever have 6 fingers on one hand? [closed]

The polydactyly gene is dominant over the common gene for finger number. Will humans ever have six fingers?
13
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8answers
6k views

Real life explanation of inheritance of werewolves' curse

Let us imagine later medieval society, very close to our 15 century society. This society struggled with Great Plague. The legends say, that they signed a pact with some supernatural forces, and the ...
5
votes
2answers
423 views

How could an insectoid race survive despite a small gene pool?

Consider an insectoid race where each worker/soldier/role is bred as required by the queen. This is very similar to ants on earth. Periodically new Queens are born who then set out to found their own ...
12
votes
4answers
5k views

What are the effects of having too small a gene pool?

This question discusses the various steps a very small gene pool could take to avoid inbreeding however most of the answers agree that it's very unlikely that a group of 6 individuals could avoid all ...
11
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3answers
668 views

What is the minimum distance needed between physically distinct races?

If there are several races with very distinct appearances (e.g. Nordic-pale vs. Arabic-tan skin, red vs. black hair, etc.), how much space / natural barriers do I need between their homelands to ...

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