With 23 pairs of chromosomes in a human, how is each pair named and differentiated, if at all?
There’s Chromosome 1, 2, 3, 4, etc but how is each pair differentiated, eg. 1a, 1b or 1p, 1m (parental/maternal) or 1xx, 1xy? One pair of shoes are differentiated by ‘left’ and ‘right’, whatabout chromosomes?
If they’re not differentiated, why not?
Thanks for all your answers – none of them are quite hitting the spot though.
I know Chromosomes are named 1, 2, 3 all the way to 22 and then the two sex chromosomes, I’m only interested in each pair – one ‘half’ comes from the mother, one half from the father – is there a term to determine which half came from which? eg. Chromosome 1 = Chromosome 1m (from mother) + Chromosome 1f (from father).
Can you tell which half came from which parent in each pair of Chromosomes? If so, what is each ‘halves’ name within the pair…if they don’t have a name, why not?
The autosomes are numbered by size, from 1 (largest) to 22 (smallest).
The two sex chromosomes are called X and Y.
You can further distinguish them by the position of the centromere, and by the chromosomal banding patterns.
Biology 1B – Lecture 27: Human evolution and evolutionary me
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