Sure. But the question assumed that the physical length can be variable depending on the environment. Even if that was the case, measurement of telomeres by the

Sure. But the question assumed that the physical length can be variable depending on the environment. Even if that was the case, measurement of telomeres by the sequence themselves will be independent of environmental factor. Maybe this is not the perfect analogy, but the character 'a' and the character 'A' might have different heights, but they still represent the same letter of the alphabet.