Mismatch repair Samenvattingen, Aantekeningen en Examens

USMLE STEP 1 BIOCHEMISTRY Questions and Answers with Complete Solutions 2024 histones are rich in which 2 AA's - ANSlysine & argenine Barr bodies (what, type of chromatin) - ANSinactive X chromosomes heterochromatin (highly condensed, sterically inaccessible) less condensed, transcriptionally active, sterically accessible chromatin - ANSeuchromatin DNA methylation at CpG islands - ANSrepresses transcription "CpG Methylation makes DNA Mute" DNA methylation (what is methylated and why?) ...

HBOC correct answers breast, ovarian, prostate, melanoma Familial Adenomatous Polyposis correct answers CHRPE (congenital hypertrophy of the retinal pigment epithelium) Li-Fraumeni correct answers TP53 Early breast, sarcoma (osteo or soft tissue), brain, leukemia, **adrenocortical carcinoma, **choroid plexus carcinoma (childhood), fam hx childhood onset tumors Cowden correct answers Folliular Thyroid, Breast, uterine, macrocephaly, Lhermitte-Duclose disease (LDD)= cerebellar dysplastic...

Progression: Construction Coordinator I - II Exam Answered Correctly. A chain trencher A return path sweep-and-alignment system is used to adjust which of the following? Anomalies, such as echoes and blind spots, can hide cable faults or cause a technician to misinterpret the signature of a time domain reflectometer (TDR) waveform. What causes an echo on a waveform TDR? As the RF signal travels on the coaxial cable, one portion of the signal may be attenuated more than the others. ...

histones are rich in which 2 AA's (Ans- lysine & argenine Barr bodies (what, type of chromatin) (Ans- inactive X chromosomes heterochromatin (highly condensed, sterically inaccessible) less condensed, transcriptionally active, sterically accessible chromatin (Ans- euchromatin DNA methylation at CpG islands (Ans- represses transcription "CpG Methylation makes DNA Mute" DNA methylation (what is methylated and why?) (Ans- template strand cytosine and adenine are methylate...

Hemophilia Pedigree - Father has hemophilia, mother does not. What is the outcome for their kids? - His daughters would be carriers. This is x-link recessive. Autosomal: Dominant: - Autosomal: males and females equally affected. Dominant: non-carrier parents polymerase chain reaction (PCR) - The process of copying DNA in the lab. Uses Template DNA, Nucleotides (dNTPS), DNA Polymerase, and DNA primers. 3 Steps of PCR - 1. Denaturation: DNA is heated to 95C to separate it. 2. Annealing: re...

Pyrimidine dimers formed in DNA due to UV radiation can be repaired by? SOS repair Double strand break repair Mismatch repair Photoreactivation repair (nucleotide excision repair) Base excision repair - CORRECT ANSWER Photoreactivation repair (nucleotide excision repair) Which of the following repair mechanisms uses methyl groups to distinguish between parental and daughter strands? Answers: Mismatch repair Photoreactivation repair (Nucleotide excision repair) SOS repair Doub...

WGU 785 Final Exam Questions & Answers 2024/2025 Hemophilia Pedigree - Father has hemophilia, mother does not. What is the outcome for their kids? - ANSWERSHis daughters would be carriers. This is x-link recessive. Autosomal: Dominant: - ANSWERSAutosomal: males and females equally affected. Dominant: non-carrier parents polymerase chain reaction (PCR) - ANSWERSThe process of copying DNA in the lab. Uses Template DNA, Nucleotides (dNTPS), DNA Polymerase, and DNA primers. 3 Steps ...

MLT 106 Unit 2 Questions with All Correct Answers What are the DNA repair systems? - Answer-Photoreactivation, excision repair, recombinational repair, mismatch repair, SOS repair When can thymine bases be altered and what does it develop? - Answer-After exposure to UV radiation to develop thymine dimers Photoreactivation repair - Answer-Involves a photoreactivation enzyme (PRE) that cleaves the bonds between thymine dimers Supplies correct strand of DNA when an error is deleted - A...

Histones are rich in what AAs? - ANSWER ☑☑Lysine and arginine (both + charge) When does histone synthesis occur? - ANSWER ☑☑S phase (along with DNA getting synthesized) Heterochromatin is _________, euchromatin is _________ - ANSWER ☑☑Inactive/condensed; active/accessible What allows mismatch repair enzymes to distinguish between old and new DNA strands in prokaryotes? - ANSWER ☑☑Methylation; old/template strands are methylated, new/daughter strands are unmethylated ...

Pyrimidine dimers formed in DNA due to UV radiation can be repaired by? SOS repair Double strand break repair Mismatch repair Photoreactivation repair (nucleotide excision repair) Base excision repair - CORRECT ANSWER Photoreactivation repair (nucleotide excision repair) Which of the following repair mechanisms uses methyl groups to distinguish between parental and daughter strands? Answers: Mismatch repair Photoreactivation repair (Nucleotide excision repair) SOS repair Doubl...