The number and appearance of chromosomes in a cell is called a karyotype. A karyotype can only be seen and studied with a microscope. ... Karyotype analysis can reveal abnormalities, such as missing chromosomes, extra chromosomes, deletions, duplications, and translocations.
Link:https://study.com/academy/lesson/karyotype-definition-disorders-analysis.html
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That's called evolution. I'm not sure exactly what it's asking, but I hope this helps you
Answer will help you.
When it involves one sets of cones it is an inherited recessive trait.