Lecture 10 MCB 450 Exam questions and answers Graded A+| 2026 Updated

Lecture 10 MCB 450 Exam questions and answers Graded A+| 2026 Updated What is the central dogma of molecular biology? Genetic information flows from DNA to RNA or DNA through base-pairing. What is a codon? A sequence of three nucleotide bases that encodes one amino acid. What are the key characteristics of the genetic code? Specificity, universality, redundancy/degeneracy, nonoverlapping, and commaless. What mutation causes sickle cell disease? A missense mutation in the beta hemoglobin gene on chromosome 11. What is the effect of the hemoglobin Mckees Rocks mutation? A nonsense mutation that results in a stop codon, leading to shorter beta chains with high oxygen affinity. What is the mutation associated with cystic fibrosis? A deletion of phenylalanine in the CFTR protein, leading to thick and sticky secretions. What are the components required for translation?