Topics: DNA Quiz
DNA replication occurs just before
A. translation
B. mitosis
C. transcription
D. respiration
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Sickle cell anemia is a disease in which red blood cells become irregularly shaped. The disease is caused by the presence of an incorrect amino acid in a certain protein. The disease most likely occurred due to an altered sequence of nitrogenous bases in the –
A. original DNA in the nucleus.
B. transcribed mRNA strand.
C. tRNA on the ribosome.
D. complementary DNA strands.