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السؤال 101

A single mutation appears in the DNA of an organism. What is the most likely effect on its phenotype?

  1. Little or no effect on the organism at allالإجابة الصحيحة
  2. A visible change to at least one characteristic
  3. A change that always harms the organism
  4. A change that appears only in its grandchildren

الشرح

Even inside a gene, many single-base changes still leave the protein doing its job, so most such changes pass unnoticed. Expecting a visible difference every time would mean each individual looked obviously unlike its parents, which is not what is observed.

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السؤال 101: A single mutation appears in the DNA of an organism. What… · Genetics Basics · Questena