Gene methylation - Study guides, Class notes & Summaries

1. which of the following statements about chickens is false? a- all chickens perceive danger equally b-genetics pre-determines how a chicken responds to danger c-a stress resilient chicken is able to recover from danger and remain healthy d-all of the above ANS: a 2. which of the following could contribute to variation in the stress response of lambs at weaning? a-methylation of the glucocorticoid receptor gene b-polymorphisms in the melancortin 2 receptor gene c-polymorphisms in the nic...

Choose the correct coding strand (non-template) from this template (non-coding) DNA: 5' ATC GAT 3' 3' TAG CTA 5' If one strand of chromosome 2 has a DNA sequence that consists of this: 5' AGA CTA ATT GCC 3', what will be the composition of the complementary DNA strand? (Select all that apply) 3' TCT GAT TAA CGG 5' 5' GGC AAT TAG TCT 3' The following sequence is the coding strand of the collagen gene: 5' GGC AAA TAT CGA 3' What is the sequence of the corresponding mRN...

ASCP MB: Extra-Practice Questions & Answers 2024 The Klenow fragment of E. coli DNA polymerase I is used: - ANSWER-to label DNA probes by random primer labeling. What is a solution hybridization method for the detection of nucleic acid:protein interactions? - ANSWER-gel mobility shift assay _____ involves mixing a labeled oligonucleotide with a protein extract to see if a specific interaction occurs, visible with an apparent increase in molecular size on a gel due to the protein:nucle...

Core Promoter Elements ~~> TATA box = repetitive sequence of thymine and adenine Initiator (INR) = sequence of pyramidines like thymine and cytosine DPE = downstream promoter elements found along the DNA Common to have >1 promoter but not all of them CpG islands ~~> Sequences high in CG frequency. They are able to escape methylation which would lead to gene silencing. Demethylation would lead to over expression of genes. Regulatory Promoter Elements ~~> UAS and URS f...

NWHSU Embryology Exam 1 Questions Correct Answers Current Update (A+ Pass) What is the leading cause of infant mortality? - Answers - Birth defects Can birth defects be prevented? - Answers - You bet your ass they can What is the most sensitive period of embryonic development when a birth defect can happen - Answers - Embryonic period During what weeks does the embryonic period take place? - Answers - 3-8 weeks Why is the embryonic period most sensitive? - Answers - During this ti...

Findings on MSE is strongest predictor of incapacity to make medical decisions? - ANSWERLack of insight Pedigree-based approaches are most powerful for identifying what type of gene variant? - ANSWERSimple tandem repeat Review location of insula on coronal section. #5 - ANSWER What can enhance hypoactive DTRs in leg? - ANSWERClench a fist Leading cause of death in persons with severe mental illness - ANSWERCardiovascular disease Med that's most effective for migraine prophylaxi...

Honors Biology DNA Questions and Answers Rated A+ What is the role of RNA in relation to DNA? RNA acts as a messenger, carrying genetic instructions from DNA to the ribosomes for protein synthesis. What is the purpose of DNA sequencing? DNA sequencing determines the exact order of nucleotides in a DNA molecule, allowing for genetic analysis and research. How does DNA differ between individuals of the same species? DNA differs in the sequence of its bases, leading to genetic...

CELLULAR BIO FINAL STUDY GUIDE Qs&As 2024 A+ gene expression - ANS-processes that control the turning on or turning off of a gene histone modification can - ANS-loosen chromatin and promote transcription DNA methylation does what - ANS-condenses chromatin, inhibits transcription, can be passed via epigenetic inheritance post transcriptional regulation allows - ANS-cells to fine tune gene expression in response to environmental changes prokaryotic gene regulation - ANS-mostly at transcri...

B form DNA correct answersRight handed, 10.5 bp Lysine (K) and Arginine (R) correct answersAssociated with Histones Bromophenol blue correct answersTracking dye Capillary electrophoresis correct answersMust be ss PFGE buffer correct answersTBE Store RNA > 7 months correct answers-70 ethanol Branched DNA correct answersDNA/RNA targets Methylation or FISH correct answersPWS/AG Nested PCR correct answers2nd step, more specific Denaturation HPLC correct answersDetecting...

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...