Questions tagged [genetics]

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

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4
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1answer
48 views

Linking genetic sex to a set of climate adaptations

My world is fairly chaotic, with the same 2/3 of it being completely broken up and remade in chunks such that the whole 2/3 is always completely different than it was ten years ago. So once species ...
9
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6answers
2k views

Founder’s effect causing the majority of people in a post-apocalyptic world to become colorblind?

So, in my world (or more rather the region in which my story takes place) when the nuclear war happened the majority of people survived in small, survivalist compounds, remote wilderness shelters, and ...
6
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4answers
326 views

Could polygamous family survive half siblings incest?

I'm worbuilding a situation about a polygamous family, consisting of a father, his several wives and their many children. They are cut off from their tribe, by highland rebellion which closed the only ...
5
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2answers
91 views

Genetic trait success tracking--is it possible?

Elf genetics works differently than the standard Darwinian model. Rather than success being determined by the gene-holder surviving and reproducing, genes are "tagged" with success levels at ...
2
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2answers
99 views

hypothetical population management scenario with a canind species with 1 males per 100 females

in this world, it's a number of small communities with a postindustrial level of technology where the male minority rules over the female majority with only one male born per a 100 females, with males ...
3
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4answers
89 views

Gene modification, does it give certainty or chances?

I don't believe this question is suited for Biology.SE, Medicine.SE, or any other stack, since it involves a real mechanism which is not applied in real life. And not every question has to be about ...
4
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7answers
461 views

Can an all-female species thrive to become divergent, despite their generic heritage from their mother?

In one of my stories, there's an alien species that are all female and are able to conceive through pathogenesis but I know this generically creates and an otherwise natural-born clone of the mother ...
2
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4answers
157 views

How can enchancing a soldiers abilities decrease their life expectancy?

Griffith, a warlord from the ancient world, leads a group of mercenaries called "The band of the Hawk". They have achieved many victories and ultimately desire to build a kingdom of their own. ...
5
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5answers
149 views

How do shapeshifters not get sick when copying other gene?

Imagine a certain group of intelligent species evolved the ability to edit their own RNA, manipulating the coding process to make proteins in their bodies. Why RNA you are forced to ask, well it's the ...
4
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3answers
135 views

Backwards-compatible Transhumanism: Is this feasible?

Let's say that we have a human society somewhere away from Earth which is psychologically ready for genetic transhumanism... perhaps humans just aren't coping with the environment, perhaps the local ...
12
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6answers
5k views

Why haven’t scientists found evidence of humans interbreeding with aliens?

In my alternative universe, Atlantis was a real city that existed, although it wasn’t called Atlantis or founded by humans. Atlantis or rather, Dosham was a city on an isolated landmass in the ...
56
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12answers
7k views

How can an organ that provides biological immortality be unable to regenerate?

After Cain killed his worthless brother Abel, he was unjustly cursed by God to wander the earth forever. On his travels, he met a sympathetic woman named Lilith. They discovered that they had a mutual ...
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4answers
196 views

How small can I make this character without making it too weird?

I'm creating a character who was born after a long period of genetic instability, which created a lot more diversity throughout the human race. I'm planning on making my character excessively small ...
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2answers
520 views

Could triangular DNA exist?

This is sort of a follow up on my question Could a "multicellular" virus exist? in which part of the consensus was that viruses simply can't hold enough DNA. In theory, could DNA form in a ...
2
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2answers
191 views

Changing humans to their mirror image versions to become immune to infectious diseases

If we could replace DNA, RNA and the ribosomes in our cells by their mirror image versions, then everything would work in the same way, except that the chirality of all molecules would have been ...
10
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2answers
466 views

In a species of simultaneous hermaphrodites, would there be any meaningful difference between siblings of the same parents in opposite roles?

Inspired by this question: Sexual reproduction without biological sex And, to a lesser extent, this question: Would a society of simultaneous hermaphrodites have gender roles? I'm not particularly ...
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4answers
132 views

How can the effects of a Gene become weaker with each new offspring?

King Solomon, founder of the Solomonian Dynasty, was the first emperor of China. After he conquered the mainland, he gave his alchemists the single command of creating an elixir that would allow him ...
2
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1answer
107 views

How can antibodies induce a demigod transformation?

The Greek gods were sufficiently advanced aliens with access to powerful technology. In the begining of our worlds formation, Zeus created mankind from his own flesh. These mortals were made in their ...
2
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2answers
208 views

What would happen if a black person used genetic modification to turn off the MC1R gene?

The MC1R gene turns pheomelanin into eumelanins but there are another kind of pehomelanin called pheochromes. So if a brunette or black person used a cosmetic gene therapy to turn off this gene how ...
3
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2answers
62 views

Effect of Prolonged Egg Diapause on Species

I have a species of megafaunal carnivore that are extremely mobile with territories spanning hundreds of square miles and lifespans of 120-150 years. They lay clutches of 2-3 eggs every 20-30 years,...
13
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15answers
5k views

Can an Alien Breed With Earth Animals?

This is my first post here, but here we go: I have been creating an alien world for a while, and the sentient species on it is very canine-like. They have a canine body, legs, and head, and the only ...
2
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3answers
270 views

Could a species be able to be impregnated by anything?

Is there a way for a species to essentially become a living incubator of sorts? Not the other way around, as in Plausible ways for the alien species to be able to impregnate every and any species?, ...
2
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1answer
67 views

What abnormalities can result from long term cryogenic preservation?

Overlord Larmark is a scientist from the 21st century who is interested in world domination, and needs powerful generals to lead his armies. He looks to the ancient world, as only that time period has ...
12
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8answers
4k views

In a world with time travel, would it be possible to be your own mother's mother?

Given that you can travel back in time and have a baby there, or alternatively, send your baby back in time, would it be possible that this baby one day becomes your own mother (gives birth to you)? ...
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5answers
4k views

Can a population suffer from accidental inbreeding?

Consider a society that is both matrilineal and non-monogamous, such as Patrick Rothfuss' Adem from The Kingkiller Chronicles. For those unfamiliar with the work, there are basically two factors at ...
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2answers
103 views

How could 3D Bioprinting and Synthetic Biology be used for reproduction?

I think it will be possible in the far future to take a single person`s cells, genetically enhance and change them using genetic engineering and synthetic biology using new genes, and put it in a 3d ...
5
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1answer
101 views

Closed gene pool tribe after 800 years?

I'm leading my D&D party through an undiscovered land, where, as far as they know, no one comes back from. I want them to encounter an isolated tribe of as few people as possible -around 30 ...
4
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6answers
268 views

How can a terrorist group link a biological plague to a specific genetic signature?

A domestic terrorist organization has come to light due to recent terror attacks that they claim responsibility for. This group has developed a biological weaponized plague that attacks the nervous ...
1
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1answer
127 views

How much DNA half-siblings do share? [closed]

Title is pretty self explanatory, but how much DNA would half-siblings share if they had the same mother ? I'm asking for a very specific reason. I'm writing a book in which some boxes can only be ...
10
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5answers
385 views

How could someone use genetics to place a skin tattoo on their descendants?

Imagine a world quite like our own, except where technology took a different turn. Instead of researching communication, transportation, the cosmos, and the general nature of the universe, scientists ...
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3answers
255 views

What is the the most efficient way to design and administer an infertility plague?

My name is Adolf Palpatine, a kind and benevolent Buddhist monk on the path to enlightenment. I have figured out a way to game the system. By making a deal with a demon, I have gained the ability to ...
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6answers
521 views

How can the offspring of Gods always be completely human? [closed]

There exists a parallel universe next to ours called the warp, in which inhabit the Gods. These beings don't exist as physical entities, but abstract manifestations based on human emotions. Fear, hate,...
3
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4answers
176 views

How can a human male be made to produce sperm for another species?

An alien creature has secretly landed on earth, seeking to propagate itself among the local species. It studies the individual sexes of a race called humans and determined that the males would be more ...
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2answers
157 views

Did people have an idea of DNA in the 17th century? [closed]

I know that DNA was discovered later in time but during the 17th century, specifically around 1620 and onwards, would people have known anything about the idea of DNA? If so then how much would they ...
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4answers
1k views

Myelination in cephalopods

I am a complete amateur regarding biology, so please forgive me if this question is a little stupid. Could we ever create squids that have human-level intelligence and could serve as a replacement in ...
4
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6answers
272 views

Why can't I activate bloodline abilities despite access to proper genetic material?

I am Incognito, a mad scientist who studies the bloodline abilities of specific clans. My research has led me to a small village which hosts a powerful family called the uchiha clan. These individuals ...
5
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3answers
123 views

What's the best way to store genetic material in a dystopian environment?

In this setting, the family unit is based around a clan system. An individual's wealth and status is related to the clan they are born in, and its ancestry is based on matrilineal lines. Due to ...
0
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2answers
150 views

ideal virus for eco-terrorist [closed]

This is a follow up question to my earlier question what makes a disease deadly? In my book, the villain, a biology professor inspired by Ted Kaczynski, wants to revert humanity into a hunter ...
2
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5answers
294 views

Species where every individual looks the same

I was thinking for ideas for new species for the planet I'm currently worldbuilding, and it occur to me if there could be a species (humanoid) where everyone looked exactly the same, and if this could ...
10
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12answers
2k views

Genetically engineered de-evolution

Why might a species advanced enough to develop genetic engineering start a process by which their own genes, over hundreds of years, would get edited back to resemble their more primitive ancestors? ...
3
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3answers
257 views

Decimating humanity though no daughters gene - when and where to introduce it?

At one point in the past, a man had a mutation on his Y chromosome. Anyone with the mutation would only produce Y sperm, and only have sons. My plan is to have this have a big impact that threatens to ...
31
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18answers
11k views

How does an all-female medieval country maintain itself?

Here's a question that came up while I was tinkering with a setting I'm working on. How would a small city-state, with a population in the tens of thousands, where all children were girls, sustain ...
7
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3answers
121 views

What are my “viral” humans harvesting from from my uninfected humans?

The following scenario takes place on Earth, sometime in the next few decades. An unethical biotech company has developed a deadly bioweapon that uses humans as a vector, almost like a suicide bomber ...
45
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13answers
14k views

Could humanity survive if all except a few males died in a plague?

Tomorrow, a sudden airborne plague comes around that kills nearly all human males - women are unaffected. The UN and different nations try their hardest but fail to find a cure. There are riots and ...
2
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4answers
160 views

Can a living human's DNA be modified for use as a living library?

I know that DNA can be used to encode information, using ACGT as a quaternary instead of binary encoding. Could a functional genetically-modified human walk around with a lot of information stored ...
10
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6answers
2k views

To what extent is it feasible for this race to be majority female?

In my world there is a race of humans who are disproportionately female. They are closely derived from and very similar to real-world humans, but are unable to interbreed with the other races as they ...
4
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3answers
329 views

Is there a reason that females passing on more than 1/2 of their genetics to the child would be unlikely to evolve?

On the earth today most animals use a two sex mating system where male and female provide the same amount of genetics to the resulting offspring, despite the fact that in many cases the female ...
6
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6answers
248 views

Crazy Alien Genetics

Think of a species (ONLY ONE SPECIES) the individuals all live in the same environment, share the same sentience level BUT are divided into "A", "B" and "C" races which have different number of limbs,...
2
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1answer
134 views

Venusian Adaptations

Recently I've been imagining living on a terraformed Venus in a distant future. I've a pretty good idea of how this can be done, having gone through many articles on how to terraform venus, so my ...
2
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3answers
210 views

Would you carry the exact same DNA if you were concieved at a different time?

In this world, time travel is possible, but the only thing that can be sent back in time are thoughts. From the perspective of your past self, you suddenly one moment realize that you have "memories ...

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