Questions tagged [genetics]

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

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Harmonizing Lamarckism with Genetics [closed]

Many Science-Fiction worlds, whether or not by design, have their aliens arise by what seems to be a form of Lamarckism. While this is all well and good, these same worlds also make use of a lot of ...
2
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1answer
105 views

Would many parents use Designer Baby technology to make their children have Asperger Syndrome?

I have Asperger Syndrome and I was thinking if in a future which parents can use Genetic Engineering to choose the characteristics of their offspring many of them would choose their children to have ...
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2answers
75 views

Why would a species from the Homo genus have overwhelmingly B negative blood type?

In my story (go to see What evolutionary pressures would lead to Ogres?), there is a massive species from the Homo genus called ogre. They mostly have B negative blood type (I do not mean Rhesus null, ...
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2answers
183 views

Shortest pregnancy length possible using artificial womb technology [closed]

Let's say that genetic engineering can make a baby be born far less than 8 - 9 months and since the artificial womb is a device it would not have the metabolism limitations that a real womb have so ...
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2answers
198 views

Genetic Plausibility of All-Male Half Giants and All-Female Witches

So, this problem is kind of a two-in-one; arguably two different issues but very closely related, so I'm posting them as one question. I'm designing a lineup of fantasy races for a roleplaying setting,...
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3answers
133 views

What would this character potentially be charged with in this situation? [closed]

In my sci fi short story I'm working on, a company called Generation sometime in the future, develops a viral based treatment for a new kind of cancer that has arisen in young children. Around fifteen ...
5
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2answers
197 views

What are some specific body parts that would irreversibly fail over time in a cancer-immune, biologically immortal person?

Let's say that you have a person who's, if certainly not immortal in the general sense, biologically immortal, as enumerated in this question - not only do their telomeres never shorten, they're also-...
5
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2answers
177 views

Near-biological immortality and cancer immunity via repurposing telomeres

TL;DR: I have solved aging and cancer with the power of handwaving and genetic science. All rejoice. Yes, there is a question at the end of this all, but you have to read it for it to make sense. In ...
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1answer
104 views

Would it be possible to genetically engineer wings onto humans? [closed]

This is entirely hypothetical, but there is human gene editing equipment. It is hypothetical because the wings would not work, unless they were ultra-light and the wingspan was 60 feet.
4
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2answers
104 views

What would a heterozygote advantage against rabies look like?

Some heterozygote advantages in humans are: People with sickle-cell trait are resistant to malaria, but people with sickle-cell disease tend to die young. Depending of the source we believe, people ...
9
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4answers
926 views

How to make different social classes look quite different?

I have a country, inspired by Edo era where for 2000 years the people lived in a hierarchical society arranged in below classes: 1 Aristocracy - Ruling class, negligible part of population 2 Warrior ...
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4answers
204 views

How would a human/floral humanoid offspring look?

I’m trying to figure out what the appearance of a human and a floral humanoid offspring would look like. The floral humanoids have humanlike bodies with petal hair and “unnatural” skin color (which ...
5
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1answer
156 views

How much of a genetic bottleneck would one man siring children in multiple generations be?

After reading Ryan North's How to Invent Everything, I thought it might be fun to try to do my own Connecticut Yankee story for NaNoWriMo, but going back an early Stone Age population. I figure on ...
3
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8answers
288 views

How would a small society of wizard geneticists spread magic powers through a magicless earth best?

A society of wizards has a magical gene they want to spread on an otherwise magicless earth. The magic gene is limited in total potency to any effects that you could produce with a million dollars. ...
2
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7answers
119 views

How to ensure magic-sensitive population remain low? [duplicate]

In my world, China earns its beginning to three major clans: the Huang, the Yan, and the Chi You. Huang and Yan are normal homo sapiens, but Chi You is a clan of sentient magical reptiles like dragons ...
2
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1answer
93 views

Genetic disease that makes thermoregulation voluntary

I wonder if the disease I invented is realistic or a total fiction. There is a real life genetic disease called congenital central hypoventilation syndrome (or Ondine's curse, if you want). People ...
2
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2answers
115 views

Would digitigrade legs be superior in low gravity for a bipedal organism?

all, I was reading another post on this forum about humans with digitigrade legs, mostly noting that they were relatively inefficient due to constant exertion to remain standing. On a planet with ...
4
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3answers
436 views

A genetic disorder that makes people unable to feel itch

I know that congenital insensitivity to pain exists and is autosomal recessive. There is a village in Sweden where 40 cases of this rare genetic disease were reported. I am writing a story with a ...
4
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2answers
78 views

Heterozygote advantage against influenza/flu

Some heterozygote advantages in humans are: People with sickle-cell trait are resistant to malaria, but people with sickle-cell disease tend to die young. Depending of the source we believe, people ...
6
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1answer
199 views

How can an animal get "upgrades" at different stages of its life?

I want an animal that gets harder to kill as it grows older, biologically immortal. Every time the animal passes different stages of its potentially endless life, it can choose to "upgrade" ...
4
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4answers
148 views

Could a genetically modified plant become a house?

I was checking out art made by Hyrotrioskjan on Deviantart and found his Nea project. One art piece features large genetically modified plants that are able to essentially house a community. These ...
2
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1answer
137 views

What would it take to have a 100% redhead population?

Redheaded-ness is a recessive trait. Obviously a society could just kill every baby that comes out with a different hair color, but is there any passive way for a human ethnic group to be 100% ginger?
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15answers
6k views

How can the wealthy prevent the illegal propagation of their genetic code?

The human genome has been completely mastered and understood by the end of this century, which has led to a service industry revolving around genetic codes. Gene editing to prevent diseases are now ...
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2answers
141 views

Re Zero ; kill all and start over - what genes are associated with non violence

Anyone with a perfectionism mania would understand the urge to delete and destroy everything for the smallest mistake, the most insignificant impurities are disgusting and craze inducing from the ...
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0answers
28 views

Are humanoids capable of breathing in water and on land feasible? [duplicate]

Is it possible to genetically engineer a creature that can breath in air and water? If so, what changes would have to be made assuming the creature was originally a human?
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2answers
195 views

Making egg laying humans [duplicate]

What are the minimal changes to human biology that a biological engineer can make to create humans that successfully reproduce via egg-laying? Assume that he wants to preserve as much of the ...
9
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8answers
414 views

What would determine the rate that a hereditary condition reveals itself after years of dormancy?

Long ago, an Eldritch deity was summoned to the city of Innsmouth within a ritual circle, where it was killed and consumed by the population. Devouring the flesh of the deity increased the mana supply ...
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2answers
147 views

Can any monosaccharide be used as a XNA backbone?

I'm not a chemist—I'm an artist and I occasionally write. But I'm starting to get more and more interested in xeno/speculative biology. When it comes to these things I'm pretty much just looking at ...
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8answers
2k views

How long would it take an isolated population to develop into its own ethnicity?

Okay, so I had this idea that there is a group of refugees (a majority of them civilian families) taking cover from an invading force, vanishing into a mountainous region that serves as a natural ...
2
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1answer
158 views

Genetic disorder that would be the opposite of achondroplasia

Achondroplasia is a form of dwarfism that is characterized by short limbs and normal-sized abdomen, torso, neck, and head. Could there be a form of gigantism that is characterized by long limbs and ...
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6answers
282 views

What are some ways I can ensure that only a small amount of people actively try to pursue divination in a pre-modern society?

I'm trying to make a story where the amount of people that are able to see the future range from 1-0.1% (i.e. 1 in 100 to 1 in 1000). The problem I'm having is that I'm trying to have my cake and eat ...
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1answer
119 views

What kind of genetic problems would arise after three, five and ten generations of inbreeding? [duplicate]

In this case I'm assuming that the family has been inbreeding to a level of 2 or closer for a certain amount of generations. Given this what would be the likely issues that would arise after: Two ...
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1answer
127 views

How would a Low Fantasy Iron Age setting be effected if Inbreeding and Divination were directly connected? [closed]

I'm trying to make a world with a very low fantasy setting in it. The world itself is currently at levels or similar to that of the Classical Civilizations during the later parts of the Iron Age i.e. ...
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7answers
8k views

How would "Amazon" (a female only subspecies) genetics work?

The traditional Amazon tribe in mythology is a society of only women that reproduces by capturing outside men. Suppose that the Amazons were an actual sub-population/subspecies of humans that, as the ...
3
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3answers
590 views

How long would it take for inbreeding issues to arise for a family that practiced inbreeding?

The magic in my setting arises from inbreeding. However to gain the powers a person must be in-bred. How long would it take before such problems arise from inbreeding if the people continued this ...
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16answers
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 ...
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2answers
124 views

Superpowers from a Blood Transfusion

Okay, in a lot of pop culture, blood transfusions can give you superpowers. In Metroid, Samus Aran was given Chozo blood to enhance her strength so that she can survive Zebes' gravity. Zebes having a ...
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1answer
135 views

A genetic disorder that makes people look like an elephant and a whale

I want to know if the genetic syndrome I invented is logical or just a total fiction. There are seven symptoms: Gigantism; Truncal obesity; Alopecia universalis (the complete absence of hair all over ...
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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 ...
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3answers
275 views

Could you breed a hominid to have an identifying crest?

This question is related to the world from my prior questions, in which several types of intelligent hominids evolved in isolation, until they were rediscovered, conquered, and bred into a biological ...
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3answers
195 views

How could civilization deal with a prion pandemic? [closed]

Prions are misfolded proteins that cause neurodegenerative diseases. They are smaller than viruses and they are the smallest known infectous pathogen. Somehow they could reproduce on their own and the ...
4
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3answers
396 views

How can the human body be optimized, yet still be mostly human?

I've been curious for a while now about how much room we have left for evolution as a species, or at the very least, as a people, due to one of my projects involving genetically-engineered superhuman ...
0
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1answer
164 views

Human-Alien Hybrid Babies (18+) [closed]

Okay, I have stories with interspecies sex, complete with viable offspring. What kind of gene editing would be needed for that to even work, and how would the resulting child's genes be expressed? And ...
10
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7answers
748 views

How different can an alien be from us if it is possible for us to have sex and procreate?

Aliens have arrived to Earth from the depths of space, and thankfully they are peaceful and only want to learn about us and interact with us. Despite some initial trepidation, first contact goes well ...
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4answers
1k views

Biology of hermaphrodite species

How from a evolutionary standpoint hermaphrodite species can exist and have a good genetic diversity, with no self-impregnation? But, this race visually looks more like females, they do have breasts ...
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4answers
1k views

Could cats sustain themselves in caves?

An odd question, yes, but a question I am asking anyway. I have a group of feral cats that lives in a cave system. They've lived down here for generations, and survival of the fittest weeded out the ...
2
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4answers
401 views

Plausibility of species with multi-colored skin

I am creating an intelligent humanoid species for DnD. I want them to have skin that has multiple colors. The colors would form patterns on the skin that would be random in each individual or could be ...
9
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8answers
3k views

Zodiac eugenics

Imagine a world slightly more developed then ours. For example internal combustion engines are becoming obsolete, they have fuel cells and electric cars. They also started using genetic engineering to ...
5
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4answers
914 views

Why can’t gene stealing parasites transform their hosts into magic users?

In my modern-day setting, people who use magic are called Fjǫlkunnigr, who gain four different powers based on core aspects of their personality called Megin. There are only three ways for someone to ...
21
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11answers
6k views

How could cats evolve toxic claws?

This cat looks like a normal Maine Coon to the unsuspecting victim. Except for one little detail: Red claws that inject a neurotoxin into the victim onpon scratching it. What would be the most ...

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