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What is On30 scale?

2020-07-31 editor 0

What is On30 scale? On30, sometimes also named On2½, is a narrow gauge railway for O-Scale. The Scale is 1/48 (1/4” to 1′). The On30 […]

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What are the 23 chromosomes?

2020-07-31 editor 0

What are the 23 chromosomes? ​Chromosome Humans have 23 pairs of chromosomes–22 pairs of numbered chromosomes, called autosomes, and one pair of sex chromosomes, X […]