WGU C785 Biochemistry Final Exam 100 Questions & Answers
polymerase chain reaction (PCR) Correct Ans:- process to copy DNA
What is needed to complete PCR Correct
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WGU C785 Biochemistry Final Exam 100 Questions & Answers
polymerase chain reaction (PCR) Correct Ans:- process to copy DNA
What is needed to complete PCR Correct Ans:- Template DNA, Nucleotides (dNTPS), DNA Polymerase, and DNA
Steps of PCR Correct Ans:- denaturation, annealing, elongation
denaturation Correct Ans:- loss of normal shape of a protein due to heat or other factor
Annealing Correct Ans:- cooled to 50c primers stick and want to copy and add DNA polymerase
Elongation Correct Ans:- reaction heated to 70C and DNA polymerase add nucleotides building a new DNA strand.
base excision repair Correct Ans:- a modified base is first excised and then the entire nucleotide is replaced
DNA glycosylase Correct Ans:- removes damaged DNA
DNA polymerase Correct Ans:- replaces to damaged DNA ligase seals it
base excision repair Correct Ans:- removes one single nucleotide
MIsmatch repair Correct Ans:- The cellular process that uses special enzymes to fix incorrectly paired nucleotides.
What DNA damage is corrected by mismatch repair Correct Ans:- errors in replication fixed
What occurs when DNA polymerase binds to DNA to make RNA Correct Ans:- transcription ! DNA polymerase takes the individual nucleotides and matches the them to the parental sequences to ensure a correct pair. It must bind with RNA primer to work.
nonsense Correct Ans:- change in 1 nucleotide produces a STOP codon
silent mutation Correct Ans:- A mutation that changes a single nucleotide, but does not change the amino acid created.
Missense Correct Ans:- a mutation that changes one amino acid
What happens during RNA splicing Correct Ans:- after transcription, the introns are removed and the exons are hooks back together