BioChemistry > EXAM > WGU 785 Final Exam Latest 2021 with Complete Solution (All)
WGU 785 Final Exam Latest 2021 with Complete Solution
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Hemophilia Pedigree - Father has hemophilia, mother does not. What is the outcome for their kids? - ANS His daughters would be carriers. This is x-link recessive. Autosomal: Dominant: - ANS Autosom... al: males and females equally affected. Dominant: non-carrier parents Polymerase chain reaction (PCR) ANS The process of copying DNA in the lab. Uses Template DNA, Nucleotides (dNTPS), DNA polymerase, and DNA primers. 3 Steps of PCR ANS 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) ANS 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. DNA polymerase-puts the right one back in while DNA ligase seals it. Mismatch repair (MMR) occurs during: ANS replicat [Show More]
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