Chromatin Study guides, Revision notes & Summaries

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;...

Green River College: BIOL 100 Unit 3 Notes Latest Updated Chapter 6: Energy for life Learning Objectives: 1. Identify the cellular structure where photosynthesis occurs and describe its function. 2. State the overall chemical equation for photosynthesis. 3. Recognize what is meant by the terms reduction and oxidation. 4. Describe the function of photosynthetic pigments. 5. Explain the flow of electrons in the light reactions. 6. Explain how ATP and NADPH are generated in the light reac...

chromatin correct answers -complex of proteins and DNA -makes up chromosomes histones correct answers -protein molecules around which DNA is tightly coiled in chromatin (wrapped by DNA) -8 subunits form nucleosome -combines with DNA to form beads-on-a-string -in nucleus of eukaryotic cells nucleosome correct answers -repeating subunits of chromatin in nucleus -histones + DNA -8 histones form this beads-on-a-string correct answers -unique structure in humans -DNA wraps around hist...

1 meter = ____ centimeters Answer - 100 Choose the letter that indicates the organelle that contains most of a cell's DNA. Answer - C The nucleus contains most of a cell's DNA. Which of these organelles carries out cellular respiration? Answer - mitochondrion Mitochondria convert the chemical energy of organic molecules to chemical energy in the form of ATP. Which of these is the double membrane that encloses the nucleus? Answer - E This is the nuclear envelope. The _____ ...

USABO EXAM QUESTIONS AND ANSWERS Eukaryote - ANS An organism whose cells contain complex structures enclosed within membranes. The defining membrane bound structure that sets them apart from prokaryotic cells is the nucleus or nuclear envelope within which the genetic material is carried. All large complex species are eukaryotes, including animals, plants and fungi. Euchromatin - ANS This shows as pale areas in the nucleus under electro magnification. It is a less densely packed for...

NURSING 5140 All SG Questions Combined (Module 1-12) Study Questions And 100% Verified Answers 2023. Module 1 Study Questions Altered Cellular & Tissue Biology Ch. 2 1. Compare and contrast cellular injury and adaptation. 1. Compare and Contrast cellular injury and adaptation. Cellular Adaptation  Cellular adaptation is an alteration that enables the cell to maintain a steady state called homeostasis despite adverse conditions. It is the cells response to protect itself from injur...

CHEM 441A FINAL EXAM QUESTIONS WITH COMPLETE SOLUTIONS. Instructions: 1. DO NOT begin the exam until instructed to do so. 2. SWITCH OFF your phones. 3. Make sure there is a total of 12 pages. 4. Write your Name AND Exam number (A or B) on your Scantron. 5. When finished, place Exam sheet and Scantron and return all materials to the instructor. Summary of points: 1. Answer on Scantron Section A (Q# 1….60) (60 Points) 2. Answer on the Exam Sheet Section B, C, and D (Q# 61-90) (40 Points...

MCB EXAM 1 QUESTIONS & ANSWERS 2023/2024 How large is our genome? - ANSWER-3200 million bp How many base pairs does the genome contain? - ANSWER-3 × 10^9 base pairs. How long is the genome when fully extended? - ANSWER-20,000 phone books long What is Chromatin? - ANSWER-the fibrous complex of eukaryotic DNA and histone proteins. Which are the main Histones? - ANSWER-H1, H2A, H2B, H3, and H4. What's the charge (polarity) of Histones? - ANSWER-Positive What amino acid resi...

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 DNA methylation at CpG islands - correct answer represses transcription "CpG Methylation makes DNA Mute" DNA methylation (what is methylated and why?) - correct answer tem...