Biochemistry WGU Questions And Answers 2022/2023

semi conservative - Answer - DNA replication is ___________, meaning that each new duplex has one original (parent) strand and one new strand. template - Answer - Because the two parent strands are separated during replication and the base pairing is predictable, each parent strand can serve as a ____________for the new strand synthesis. helicase - Answer - unwinds the double stranded DNA to allow for replication, but this is not a problem for the DNA polymerase. Nucleotide excision repair - Answer - _______________is used to repair deletions, insertions, and helix-distorting lesions, such as thymine dimers. complementary strand - Answer - a strand of DNA that is the exact match of another complementary sequence - Answer - Nucleic acid base sequences that can form a double-stranded structure by matching base pairs. mRNA DNA sequence - Answer - The use of U instead of A, starts from right to left. 32 - Answer - How many DNA copies after 4 complete PCR cycles? DNA polymerase - Answer - This recognizes the primers and uses the available dNTPS to replicate the template DNA sequence. nonsense mutation - Answer - missense mutation - Answer - frameshift mutation - Answer - silent mutation - Answer - x linked recessive - Answer - autosomal dominant - Answer - autosomal recessive - Answer - x linked dominant - Answer - SIRT1, SIRT2 - Answer - associated with chronic exposure to cocaine and drug addiction, the nucleosomes become widely spaced.