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Use "chromosomes" in a sentence
"Biological information in chromosomes changes by various means, usually sexual mixing, occasionally by mutation."
"To begin with, researchers were shocked to discover how much DNA on our chromosomes is unspoken for -- that is, not arranged into specific gene sites associated with identifiable traits."
"Or it could be that the author has taken the human genome as a model: Most of the material in our chromosomes is “junk DNA”, serving no purpose but padding."