Chromatin - Study guides, Class notes & Summaries

Purines and examples of them Purines contain two carbon-nitrogen rings and four nitrogen atoms. Adenine and guanine Pyrimidines and examples of them pyrimidines contain one carbon-nitrogen ring and two nitrogen atoms. Thymine and cytosine Structure of DNA DNA is a double helix (two helical strands.) The two strands are held together by the 'rungs', which are made of complementary pairs. The pairs are held together by weak hydrogen bonds. Arrangement of DNA antiparallel arrangement, ...

UAMS Parasitology Exam Final Review Questions & Answers 2024/2025 ingested RBCs - ANSWERSWhat cytoplasmic inclusion can be found exclusivley in Entamoeba histolytica? uneven/bumpy peripheral chromatin & a small eccentric karyosome - ANSWERSDescribe the nucleus of Entamoeba coli (karyosome size and periperal chromatin distribution) 1 nucleus - ANSWERSHow manu nuclei can an Iodamoeba butschlii cyst have? ingest cyst from contaminated food or water - ANSWERSWhat is the method of infec...

The process of DNA replication requires that each of the parental DNA strands be used as a ____________ to produce a duplicate of the opposing strand. (a) catalyst (b) competitor (c) template (d) copy - CORRECT ANSWER-(c) template DNA replication is considered semiconservative because __________________________________. (a) after many rounds of DNA replication, the original DNA double helix is still intact. (b) each daughter DNA molecule consists of two new strands copied form the...

Human parasite; trophozoite motile, reproducing, feeding stage amebae excreeted as trophozoites cant mature to cyst infective stage Human parasite; cyst nonmotile; nonfeeding stage infective stage for humans transission of cys stage by fecally contam food or water cxcystation occurs in lower intestine, and organisms begin to mult as trophozoites human parasites: identifying cyst round oval shape, non motile, refractile, thick wall, often 1 nucleus human parasite;...

This project focused on Chromatography and got distinction level. I got all criteria P4, P5,P6,P7,M4,M5,M6,D3,D4.

MCB 2050 Molecular Biology of the Cell upcoming exam 2024 cheat sheet with Prof. K. Yankulov University of Guelph I synthesize pre-mRNA, what polymerase am I? a) DNA polymerase b) RNA pol III c) RNA pol II d) RNA pol I d) RNA pol I __________ is darkly staining and densely packed chromatin which is transcriptionally __________. a) euchromatin; inactive b) euchromatin; active c) heterochromatin; inactive d) heterochromatin; active c) heterochromatin; inactive Where is the c...

BIO 353 Exam 1 Study Guide Questions And Answers With Verified Solutions The Cell ANS Basic unit of life What are the major organelles/structures of a basic eukaryotic animal cell? ANS Nucleolus, nucleus, nuclear envelope, nuclear pore, chromatin (DNA), mitochondria, endoplasmic reticulum, golgi complex, actin filaments, microtubule, peroxisome, ribosomes in cytosol, intermediate filaments, lysosome, vesicles, centrosome w/ pair of centrioles, plasma membrane, extracellular matrix What ...

Biochemistry USMLE Step 1 ACTUAL Exam Questions and CORRECT Answers histones are rich in which 2 AA's - CORRECT ANSWER- lysine & argenine Barr bodies (what, type of chromatin) - CORRECT ANSWER- inactive X chromosomes heterochromatin (highly condensed, sterically inaccessible) less condensed, transcriptionally active, sterically accessible chromatin - CORRECT ANSWER- euchromatin

BIOS 103 NIU EXAM 3 QUESTIONS AND ANSWERS GRADED A+ What complex molecular structure forms the basis of genetic inheritance? A) Chromatin B) Chromosomes C) DNA D) Proteins A) Chromatin Chromatin is a complex molecular structure that forms the basis of genetic inheritance. What dense nuclear structure is present during interphase? A) Nucleolus B) Centromere C) Telomere D) Nucleus A) Nucleolus The nucleolus is a dense nuclear structure present during interphase. Wha...

USABO Exam Questions and Answers 100% VerifiedUSABO Exam Questions and Answers 100% VerifiedUSABO Exam Questions and Answers 100% VerifiedUSABO Exam Questions and Answers 100% Verified Eukaryote - ANSWER - An organism whose cells contain complex structures enclosed within membranes. The defining membrane bound structure thats sets them apart from prokaryotic cells is the nucleas or nuclear envelope within which the genetic material is carried. All species of large complex species are eukaryotes...