Reciprocal strand exchange is associated with ... O DNA photolyase site-specific recombination O general recombination O DNA excision/repair
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Step by step
Solved in 3 steps
- Match the bold DNA repair response(s) to the triggering type of DNA damage. Homologous Recombination Mishmatch Repair Base Excision Repair Nucleotide Excision Repair Non-homologous End Joining Single-strand DNA breaks Removal of repair lesions such as photoproducts caused by UV including Thymine dimers Double-Strand Break repair mechanism which is an accurate repair mechanism without any introduction of insertions or deletions. It requires a sister chromatid as a template. This repair mechanism uses just DNA glycosylase to remove Uracil (no other enzymes or complexes are required) then DNA polymerase can use the template stand to add the complementary base where the Uracil has been removedInterstrand Crosslink Repair This repair mechanism is used to recognize and repair mis-incorporation of base that can arise during DNA replication. Removal and replacement of modifying bases such as Uracil, 8-hyroxyguanine and others. Double-strand Break that is termed as “Quick and Dirty” as it is…Ku proteins involve. nucleotide excision repair DNA repair before S phase single DNA strand break and repair homologous recombination O None of the aboveDuring DNA replication, one of the new strands of DNA is synthesized continuously, while the other is synthesized as a number of separate fragments of DNA that are subsequently linked by DNA ligase. This is because O replication starts at many points on the chromosome RNA primers only anneal to one of the parental strands of DNA one of the parental strands is unwound slower than the other by helicase DNA polymerase III only synthesizes DNA in the 5' - 3' direction
- If a mutation occurred that prevented single stranded binding proteins from binding, the result would be: O Replication would not be initiated O DNA would be synthesized on the leading strand, but not the lagging strand Replicating would be initiated, DNA would unwind, RNA primers would be laid down, but DNA polymerase would not bind O The newly synthesized RNA would not be able to leave the DNA template Replication would be initiated, but RNA primers would not anneal to the DNAConsidening the structure of DNA, what kind of bonds hold one nucleotide to another within one side of the DNA molecule? O hydrogen O phosophodiester O lonic peptideWhich of the following would be involved in the excision repair of a thymine dimer? O DNA polymerase I Nuclease Topoisomerase Primase
- Which of the following repair mechanisms removes damaged bases in non-dividing cells? double strand break repair Obase excision repair O mismatch repair O recombinational repairWhat does i mean to say that extension by DNA polymerase III proceeds 5' 3'? The 5' end of a DNA polymerase molecule attaches to the 3' end of primase. DNA polymerase adds nucleotides to a growing strand, moving in the 5'-3' direction. O DNA polymerase seals nicks as it moves along a DNA strand toward the 3' end. DNA polymerase can only synthesize DNA at the 5' end of an existing strand of DNA. O O 0Why are Gyrase inhibitors good antibiotics to use therapeutically? DNA Gyrase is required by prokaryotes, but not eukaryotes, to complete chromosomal replication so it's a good target to inhibit. O DNA Gyrase is required by eukaryotes, but not prokaryotes, to complete chromosomal replication so it's a good target to inhibit. It's impossible to develop resistance against Gyrase inhibitors so they are always effective. O DNA Gyrase is required by both prokaryotes and eukaryotes to complete chromosomal replication so it's a good target to inhibit.
- Which repair mechanisms is most require to fix thymine dimers? BER NER mismatch repair homologous recombinationRecombination is generally initiated at double strand breaks, both during DNA repair and during recombination between homologous chromosomes during melosis. O True FalseDuring cellular checkpoints DNA Repair Proteins can edit and patch our DNA through many different repair mechanisms. What two kinds of repair are there for Double Stranded DNA breaks?