WGU 785 Final Exam QUESTIONS AND ANSWERS RATED A+ 2023|2024

WGU 785 Final Exam QUESTIONS AND ANSWERS RATED A+ 2023|2024 Hemophilia Pedigree - Father has hemophilia, mother does not. What is the outcome for their kids? Correct Answer: His daughters would be carriers. This is x-link recessive. Autosomal: Dominant: Correct Answer: Autosomal: males and females equally affected. Dominant: non-carrier parents Polymerase chain reaction (PCR) Correct Answer: The process of copying DNA in the lab. Uses Template DNA, Nucleotides (dNTPS), DNA polymerase, and DNA primers. 3 Steps of PCR Correct Answer: 1. Denaturation: DNA is heated to 95C to separate it. 2. Annealing: reaction is cooled to 50C; primers stick to the DNA you want to copy and add DNA polymerase. 3. Elongation: reaction heated to 70C and DNA polymerase, adding nucleotides building a new DNA strand. Base Excision Repair (BER) Correct Answer: How you repair a mutation. BER is used to repair damage to a base caused by harmful molecules. You remove the base that is damaged and replace it. *BER removes a single nucleotide* DNA glycolsylase - sees damaged DNA and removes it.