The 23 chromosome pairs, made up of 3 billion base-pairs, 22 chromosomes of which are autosomal and one which is an allosome, or sex chromosome.

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How can stem cells be counted in body?

In the study of supercentenarian woman here, it was found that all her blood cells are formed from only two stem cells (ancestor stem cells). How scientists can distinguish cell ancestors? Aren't ...
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Insertion of synthetic DNA sequence

If I have some synthetic DNA sequence (<=20 bp long), is there a way for me to reliably insert this sequence next to some n-bp motif? I'd like for this to be possible in humans. If so, are there ...
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Will someone with a double mutation in the allosomes be normal?

Normally a female human has an X allosome from her father and an X allosome form her mother. What if an double mutation happened, which causes that someone has two X allosomes form her mother and no ...
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condensed protocol for sequencing a portion of human DNA from buccal sample

Anyone have a short & sweet protocol for PCR amplifying a region of human DNA (chromosomal or mt, I don't care) extracted from a buccal sample: including validated primer sequences and preferred ...