THE MOLECULAR BASIS OF INHERITANCE
DNA MAKES RNA MAKES PROTEIN
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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It would increase cell specialization in organs.
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It would change the sequence of DNA nucleotides in affected cells.
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It would produce new nucleotides for DNA molecules.
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It would cause an increase in red blood cell production.
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Detailed explanation-1: -How would overexposure to X-rays affect most animal cells? It would increase cell specialization in organs.
Detailed explanation-2: -Radiation injures tissue by ionizing molecules within body cells, that is, depositing energy and causing an electron or electrons to be removed from an atom of the molecule. These ionized molecules may be inactivated and cell death may result.
Detailed explanation-3: -Which would most likely produce a mutation that is passed on to offspring? A gamete with an extra chromosome forming.
Detailed explanation-4: -How can a base substitution sometimes show no change in the protein that is made, but in other cases cause problems like sickle cell disease? Environmental factors cause the sickle cell disease to appear. Insertion of nucleotides causes sickle cell disease. Deletion of nucleotides causes no change in affected proteins.
Detailed explanation-5: -Most nocturnally active moths are attracted to light, a phenomenon known as positive phototaxis.