Questions tagged [genetics]

The science of genes, heredity, and variation in living organisms.

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30
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2answers
10k views

Do humans share 50% of their DNA with bananas?

It's widely claimed that we share 50% of our DNA with bananas. Does this have actual basis or is it a myth? Example claims The Mirror (UK), NHGRI
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1answer
194 views

Do the hemoglobin genotypes of a couple affect whether their offspring will get Sickle Cell Disease?

I just read this (currently unanswered) Quora quesion: What should I do? After seven years in a relationship, I just find out that our genotype is AS. Since I never heard of this before I googled ...
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1answer
341 views

Have more than a million people had their whole genomes sequenced by the end of 2018?

The news article https://www.wired.com/story/whole-genome-sequencing-cost-200-dollars/ (mirror) published on 2018-11-18 claims that Today, slightly more than a million people have had their whole ...
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2answers
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Are Ashkenazi Jews smarter?

I just received an email entitled "Why are Jews So Smart". You can read an article here. I also found a similar article in New York Magazine. Did Jewish intelligence evolve in tandem with Jewish ...
17
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2answers
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Is this image of eye colour inheritance accurate?

This image is circulating on social media (e.g. Pinterest). It implies that if you have green eyes, then you can't possibly have one biological parent with blue eyes and the other with brown. The ...
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1answer
415 views

Do only ~2.4% of participants in large-scale genetic studies have African ancestry?

From a February 18 23andMe tweet: Only about 2.4% of participants included in large-scale genetic studies have African ancestry. Is this claim true?
24
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1answer
3k views

Are Adolf Hitler's DNA samples available?

A recent report published by LePoint claims that a Frenchman named Jean-Marie Loret is Hitler's son. The evidence in favor of this claim cited by the Huffington Post includes: Hitler and Loret have ...
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0answers
673 views

Is it possible have a cell fusion by just injecting human sperm to an unfertilized chicken egg?

I stumbled upon these video documentation titled 'Humonculus' in Youtube (I know Youtube is not reliable source, but the video to me looks legit and well video documented) by channel named Planet ...
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2answers
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Can Tifton 85 grass produce cyanide gas?

Today I read something quite unexpected: Preliminary tests revealed the Tifton 85 grass, which has been here for years, had suddenly started producing cyanide gas, poisoning the cattle. [...] ...
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4answers
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Are girls and boys pre-programmed to behave… like girls and boys?

My dad claims that even as toddlers, my sister and I knew which toys to play with. For example, I would always pick up toy guns, Action Man, and other similar toys. She would always pick up Barbie. He ...
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1answer
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Do humans share 99% of their DNA with rats?

I keep hearing this claim that a lab "rat has 99% of the DNA of a human?" Is that so? What exactly does this mean? One source for this claim seems to CNN which only says, "About 99 percent of genes ...
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1answer
446 views

Fewer shared immune genes in a couple correlate with (or even cause) more female orgasms?

I found in a psychology blog that Researchers have found that women who share fewer immune genes with their male partners also report more frequent orgasms (Garver-Apgar et al., 2006). And the ...
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Has increased computer use led to increased myopia?

According to ABC News and this Ophthalmological study there has been a significant increase in the number of people with myopic eyesight over a recent 30 year period. From the ABC article: There ...
4
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1answer
393 views

Is divorce caused (or influenced by) genetics?

From Independent headline: Divorce does run in the family and could be genetic, researchers have suggested. ... the study – carried out by Virginia Commonwealth University (VCU) and Lund ...
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0answers
421 views

Was Zana from a relict hominid population?

Did Zana (a 19th century Russian "ape-woman") belong to a relict hominid population? In his 2015 book, "The nature of the beast: The first scientific evidence on the survival of apemen into modern ...
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1answer
6k views

Are red heads more likely to be hot headed?

It's a common cliche that red heads are more likely to have a fiery personality. To quote from Wikipedia: A common belief about redheads is that they have fiery tempers and sharp tongues. In ...
14
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1answer
3k views

Of all humans ever born, did most men not become fathers?

I quote in full a passage from the book Is There Anything Good About Men?: How Cultures Flourish by Exploiting Men by Roy Baumeister, pages 63 – 64: Counting Ancestors Let’s return now to ...
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2answers
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Is there more genetic difference between men and women than men and male chimpanzees?

I got into trouble with someone yesterday for poo-pooing this idea as it smelled of apples and oranges to me. The specific statistic was that genetically there is a 5% difference between men and ...
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3answers
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Is 8% of human DNA from viruses?

According to 23andme's Twitter Image reads, Approximately 8% of DNA is originally from viruses, which infected your ancestors and became integrated into their cells.
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2answers
1k views

Is Y-chromosomal Adam younger than Mitochondrial Eve?

A Christian claimed to me that: the Y-chromosomal Adam is way younger than the Mitochondrial Eve. Is this true? He argued that this was consistent with the biblical account: that Noah is Y-...
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1answer
314 views

Are new genes created through duplication?

In an creationist article, about molecular virologist, Dr Yingguang Liu, it says: Evolutionists commonly invoke ‘duplication’ as a way to create brand new genes. A copying error can lead to an ...
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1answer
4k views

Do the mother's genes almost exclusively determine the sons' intelligence?

According to this paper: Intelligence and the X chromosome by Gillian Turner, published by The Lancet (a highly regarded medical journal) in 1996, the X chromosome is dominantly responsible for coding ...
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2answers
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Are humans descended from chimp-pig hybrids?

Geneticist Dr. Eugene McCarthy claims that humans have descended from hybrids of pigs and chimpanzees: A 2013 Phys.Org article explained: he has amassed an impressive body of evidence suggesting ...
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1answer
506 views

Are red-heads going extinct?

There is a widely-held belief that there will no longer be humans with red hair in the future (sometimes cited by 2060 or 2100). For example, these Facebook groups: "Save the ginger kids, there ...
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1answer
578 views

Do Jews mostly descend from Shem, son of Noah?

I mean, I am not exactly a creationist. However, http://en.wikipedia.org/wiki/Shem How come we have a race called "semite" as in anti-semite? It's as if people think that those people are descendant ...
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1answer
334 views

Did Homo sapiens have children with Neanderthals?

One of my friends told me that Homo Sapiens and Neanderthals had children together when the homo sapiens came to Europe about 50 000 BC. But is it possible that Homo Sapiens and Neanderthals had ...
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1answer
1k views

Have scientists successfully cloned a dinosaur?

An article makes a claim that scientists have cloned a baby Apatosaurus. From Article: Scientists at Liverpool’s John Moore University have successfully cloned a dinosaur, a spokesman from the ...
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0answers
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Is 80% of childs intelligence acquired from mother? [duplicate]

Several articles on internet claim that 80% of child's intelligence is acquired from mother. however not providing any scientific publications. Is it really true? source: http://brooklynmutt.com/post/...
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0answers
149 views

Ethnoreligions: what religions explicitly claim heritability? [closed]

Several SE/SO questions (e.g., this) address what is often claimed to be (often correctly) confusion between ethnicity and religion. Certainly (IIUC, ICBW) most modern religions tend to be avowedly (...
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1answer
660 views

Are Ashkenazi Jews genetically more European than Semitic?

Referring to this article Surprise: Ashkenazi Jews Are Genetically European. But a new study suggests that at least their (Ashkenazi Jews) maternal lineage may derive largely from Europe. ...
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0answers
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Did Neanderthals keep Cro-Magnons as sex-slaves?

Some time ago, it was thought that modern people came from Cro-Magnons, and Neanderthals became extinct. But after the Neanderthal genome project, we found that modern people have from 1% to 4% of ...
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1answer
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Are Mary Kate and Ashley Olsen fraternal twins?

Wikipedia claims that American actors Mary Kate Olsen and Ashley Olsen are fraternal twins. They have also both claimed this. Other sources claim the same: Washington Post, St. Petersburg Times, and ...
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1answer
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Do races/ethnicities have different odors?

This is a serious question and not intended to demean any ethnic group or racial group. I'm Caucasian and have dated Asian (Chinese), black and South Asian (Indian and Pakistani) men. I have noticed ...
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6answers
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What risks exist with GMO, but not with selective breeding?

Anytime you hear Genetically Modified Organisms (GMO) come up, someone always pipes in that it's perfectly safe because we've been doing it for thousands of years through selective breeding. ...
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4answers
2k views

Does homosexuality preserve the species?

From The Huffington Post: For even without a causal link established between homosexuality and population management, the obvious reduction in population growth attributable to homosexuality by ...
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0answers
534 views

Is approximately 80% of a child's intelligence acquired from the mother? [duplicate]

Uberfacts, a Twitter account with 9.43M followers claims that 80% of a child's intelligence is acquired from the mother. How true is this? Gizmodo doesn't do a very good job of debunking this: ...
5
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1answer
424 views

Is height about as heritable as obesity?

The Thin Privilege FAQ explains: Weight is about 50% - 80% heritable (sources disagree, but here’s a study that shows it to be 77% heritable). Height, for comparison, isn’t 100% heritable (I’ve ...
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1answer
14k views

Are all white cats with blue eyes deaf?

I was told that all pure white cats with both eyes being blue are completely deaf, and that all pure white cats with one blue eye are deaf on the side that has the blue eye. If the cat has even a ...
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2answers
4k views

Is IQ hereditary? If so, to what degree?

The movie Idiocracy suggests that intelligence is hereditary; this idea has also been perpetrated by German author Thilo Sarrazin, who claims that due to the higher fertility of Islamic immigrants and ...
9
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1answer
479 views

Was Charles Darwin's family adversely affected by inbreeding?

I was reading the Wikipedia article on Inbreeding depression when I came across this: Charles Darwin, through numerous experiments, was one of the first scientists to demonstrate the effects of ...
12
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1answer
4k views

Does inbreeding cause severe birth defects?

I've been doing some research on breeding rabbits and saw many people mentioning that if you inbreed rabbits (father-daughter/mother-son/sister-brother) that there is only a small chance of birth ...
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1answer
1k views

Did drinking milk cause an evolutionary change in the human genome?

In a recent Slate article "The Most Spectacular Mutation in Recent Human History. How did milk help found Western civilization?" (October 23, 2012), a claim was made that: [Around 10,000 B.C.] a ...
15
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1answer
877 views

Do corporations own human DNA sequences?

I came across the claim that Human DNA sequences are now owned by corporations: FACT: HUMAN DNA SEQUENCES ARE NOW OWNED BY CORPORATIONS Is this true? If so, what does this mean? (I realise ...
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1answer
368 views

Can phobias be genetic, but created in one generation and not by natural selection?

I have seen this article floating around http://www.telegraph.co.uk/science/science-news/10486479/Phobias-may-be-memories-passed-down-in-genes-from-ancestors.html Pretty much they state that if a ...
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1answer
13k views

Is there any harm in forcing/re-educating a left-handed child to use their right hand?

Backstory: Many of my relatives were subjected by their parents to a "training process" to "prevent" left-hand-dominance. This method started at a very young age and basically consisted of politely ...
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0answers
317 views

Is it possible for ingested dsRNA (or other genetic materials) to affect human gene expression?

I am usually pretty skeptical about claims on the danger of genetically modified crops because the issue of health for me logically breaks down to: Do the genes altered produce toxic chemicals in a ...
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2answers
3k views

Is Lamarckian evolution still considered credible?

I had thought that Lamarckian evolution had been essentially dismissed in favour of Darwinian evolution. Lamarckian evolution as I understand it is essentially the idea that the traits an organism ...
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1answer
2k views

Are Ashkenazi Jews largely descended from Khazars?

There is an obvious ethnic subdivision within Jews, between the Sephardic and the Ashkenazi. In several vaguely antisemitic websites (see for instance, here, here, and here ), but also in a completely ...
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1answer
501 views

Does speciation occur?

I am not questioning the theory of comment descent, but I am skeptical about the evolutionary mechanisms proposed for speciation. Have we ever observed in detail how speciation occurs? We can take ...
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1answer
533 views

Did the Lenski experiments result in additional genetic information?

In the debate between Bill Nye and Ken Ham on Feburary 4, 2014, Ham claimed the Richard Lenski experiments added no new genetic data. He went on to show a clip from Dr. Andrew J. Fabiach, a ...