Genomic imprinting Study guides, Revision notes & Summaries

Molecular Diagnostics Chapter 12 Revised Exam [100% PASS] /verified/ What are the three types of epigenetic changes? *Ans* 1. DNA methylation, alterations in CpG islands; down regulates transcription 2. genomic imprinting; inactivates chromosome regions 3. chromatin remodeling; sequesters DAN through protein binding and histone modification makes DNA either available or unavailable for transcription congenital *Ans* mutation/disease, existing at birth Barr body *Ans* A dense body for...

Trait -ANSWER_ Any characteristic that an organism displays Genomic imprinting -ANSWER_ A segment of DNA is marked and the effect is maintained throughout the life of the organism inheriting the marked DNA Maternal Effect -ANSWER_ The genotype of the mother directly determines the phenotype of her offspring. Test cross -ANSWER_ Mating between an individual that is heterozygous for two or more genes and one that is homozygous recessive for the same genes Crossing over -ANSWER_ Non sis...

activators - TFs that increase the levels of transcription initiation Adaptive mutations - evolutionary change and adaptation to new environments, stressful conditions darwins birbs AP - activator proteins ARE - AP2 response elements Base analogs (chem induced - 5-bromouracil resembles thymine, except that it has bromine atom in place of methyl on 5' C base excision repair (BER) - repairs damaged base by using AP endonuclease to cleave damage on 5' side and DNA polymerase add new base...

NR507 2023 Midterm Exam Questions with Correct Answers Epigenetics - ANSWER heritable alterations that are not due to changes in DNA sequence epigenetic modifications, or "tags," such as DNA methylation and histone modification - ANSWER alter DNA accessibility and chromatin structure, thereby regulating patterns of gene expression. histone modifications - ANSWER A histone modification is a covalent post-translational modification (PTM) to histone proteins whi...

Saylor Academy Psych101 Exam Questions and 100% Correct Answers Eugenics - answerThe science of improving a human population by controlled breeding to increase the occurrence of desirable heritable characteristics. Developed largely by Francis Galton as a method of improving the human race, it fell into disfavor only after the perversion of its doctrines by the Nazis. Genomic imprinting - answerPhenomenon by which certain genes are expressed in a parent-of-origin-specific manner. If the a...

Consider the table below where a child and a possible father (PF) share the listed paternity indices for each locus listed (LOC-A1, LOC-B2, LOC-C3, LOC-D4). Locus Tested PF Child Paternity Index LOC-A1 3 2/3 2.18 LOC-B2 7/5 5 0.798 LOC-C3 15/17 9/17 5.21 LOC-D4 12 12 1.37 Based on the data presented in the table, what is the combined paternity index, CPI, from the loci tested: LOC-A1, LOC-B2, LOC-C3 and LOC-D4? 12.42 9.558 15.56 2.38 - ANSWER 12.42 ( CPI is calculated by multiplying ...

Saylor Academy Psych101 Exam Questions and 100% Correct Answers Eugenics - answerThe science of improving a human population by controlled breeding to increase the occurrence of desirable heritable characteristics. Developed largely by Francis Galton as a method of improving the human race, it fell into disfavor only after the perversion of its doctrines by the Nazis. Genomic imprinting - answerPhenomenon by which certain genes are expressed in a parent-of-origin-specific manner. If the a...

Which PCR method has the highest specificity? A. qPCR B. Touchdown PCR C. Nested PCR D. Two-step PCR Nested PCR Given the anti-sense strand of DNA: 5'-AATTGCCGACATAGAT-3' which is the appropriate sense strand? A. 5'-ATCTATGTCGGCAATT-3' B. 5'-TTAACGGCTGTATCTA-3' C. 5'-AATTGCCGACATAGAT-3' D. 5'-GAGCACGCTATCTTAT-3' 5'-ATCTATGTCGGCAATT-3' During DNA replication, the 3' -OH of the growing DNA chain attacks which phosphate of an incoming nucleotide? A. Alpha ...

Final Exam Advanced Pathophysiology, Pathophysiology Finals Questions And Answers 2024physiologic jaundice - correct answer-A 3-day old infant is noted to have a mildly elevated unconjugated bilirubin level and icterus. Your concern is that this child may have: a. physiologic jaundice b. kernicterus c. glucose-6-phosphate dehydrogenase deficiency d. pathologic jaundice Lysosomes - correct answer-Which cell component is capable of cellular autodigestion when it is released during cell inju...

MSN 570 ADVANCED PATHOPHYSIOLOGY EXAM EXAM QUESTIONS AND ANSWERS|ALREADY GRADED A A 3-day old infant is noted to have a mildly elevated unconjugated bilirubin level and icterus. Your concern is that this child may have: a. physiologic jaundice b. kernicterus c. glucose-6-phosphate dehydrogenase deficiency d. pathologic jaundice --ANS-- physiologic jaundice Which cell component is capable of cellular autodigestion when it is released during cell injury? a. lysosomes b. ribosomes...