Questions tagged [dna]

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Is the code from the mRNA vaccine executed by the cells as a one-off?

Is the code from the mRNA vaccine executed by the cell that has taken it up as a one-off or does the cell produce the spike proteins endlessly (like a programming loop) until the cell is killed by the ...
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Why isn't the mRNA in covid-19 vaccines taken up by all types of cells?

I'm familiar with the basic principles by which the moderna/pfizer vaccines work. I'm confused about how the vaccines are able to make sure that mRNA is only taken up by dendritic cells. If mRNA is ...
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2answers
102 views

Why is the new mRNA vaccine unable to modify human DNA?

One of the most common worries expressed against the new coronavirus vaccine is that, supposedly, injecting mRNA into a cell has the potential to alter the human genome. I am constantly bombarded by ...
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Hair analysis for a fictional story

I am writing something where hair is used as evidence. The hair sample was found on a crime scene, but there isn't a lot of it - two, three hairs tops. One would be best. What I need to happen is that ...
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Pedigree disease risk calculation IRL - how difficult/expensive?

The probability of a child being affected by genetic diseases like Spinal muscular atrophy or Canavan disease (and many other) depends solely on the parents being carriers of such disease. Suppose ...
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1answer
54 views

Why do age-related DNA transcription errors not manifest in children as readily as their parents?

When cells replicate, there is the occasional transcription error. As a person ages, these transcription errors accumulate. The reason that a lot of the elderly develop cancer, is the DNA governing ...
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1answer
35 views

Longterm effects on DNA of aciclovir

Since aciclovir works by decreasing the production of the virus's DNA, one might fear that it also damages DNA of healthy cells. I know that it is usually said that aciclovir doesn't affect healthy ...
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1answer
50 views

Race and bone marrow donor search

I've heard the argument that race is not a real scientific entity several times. Despite what on the surface look like very different traits, humans share significantly more DNA with each other than ...
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0answers
30 views

Effects of hypophosphatemia on DNA

There is a lot of supportive evidence that its role in ATP results in much of the clinical manifestation of hypophosphatemia, but I was wondering about the other roles where Phosphate is an important ...
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2answers
760 views

Identical twins have the same DNA and blood-types, right? But different fingerprints? Why is that? Same for clones?

Identical twins have the same DNA and blood-types, right? But different fingerprints? Why do they have different finger-prints? What gene or part of our body signals what our fingerprint will look ...
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1answer
67 views

23andMe DNA Test is reliable?

Does the 23andMe DNA Test is reliable and worth to get ? Or there is nothing like the actual physical dna tests at laboratories. Does 23andMe DNA Test provide the exact information provided by ...
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1answer
538 views

Is it possible to change person's blood group?

Is it possible to change person's blood group? I know it is not possible to change person's DNA, so what about blood group?
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What if we replace the DNA in stem cells with ours and we place the cells inside damaged organs to heal them?

I don't know a lot about stem cells or if a person's DNA could affect them in such a manner that if a person would have a damaged limb or organ, it would make it grow back with stem cell treatment.
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Interesting data from stool/poop

I'm interested in getting personal health data from unusual sources. What are some surprising things you can learn from your stool/fecal material, e.g. regarding: Gut flora Digestive health ...