And dna - Study guides, Class notes & Summaries

1. A student is observing a cell under the microscope. It is observed to have supercoiled DNA with histones. Which of the following would also be observed by the student? a. A single circular chromosome b. A nucleus c. Free-floating nuclear material d. No organelles ANS: B The cell described is a eukaryotic cell, so it has histones and a supercoiled DNA within its nucleus; thus, the nucleus should be observed. A single circular chromosome called a prokaryote contains free-floating nucle...

Test Bank for Biology Today and Tomorrow With Physiology 6e 6th Edition by Cecie Starr, Christine Evers, Lisa Starr. Full Chapters test bank included - Chap 1 to 29 (Complete Chapters) 1. Invitation to Biology. UNIT I: HOW CELLS WORK. 2. Molecules of Life. 3. Cell Structure. 4. Energy and Metabolism. 5. Photosynthesis. 6. Releasing Chemical Energy. UNIT II: GENETICS. 7. DNA Structure and Function. 8. Gene Expression and Control. 9. How Cells Reproduce. 10. Patterns of Inheritance. ...

A - Alanine (1 letter) Activation of enzymes through ligand binding: why would this be useful? - The binding of a ligand to an allosteric site of a multimeric enzyme often induces positive cooperativity, that is the binding of one substrate induces a favorable conformation change and increases the enzyme's likelihood to bind to a second substrate. Ala - Alanine (3 letter) Arg - Arginine (3 letter) Asn - Asparagine (3 letter) Asp - Aspartic Acid (3 letter) Barr body and relation to hete...

Exam 2: NR228 / NR 228 (Latest Update 2024/2025) Nutrition, Health & Wellness: |Complete Guide with Questions and Verified Answers| 100% Correct -Chamberlain Q: Thiamine (B1) function: Coezyme in energy metabolism. role in nerve function- ing related to muscle actions. Q: Thiamine (B1) sources Answer: lean pork, whole or enriched grains and flours, legumes, seeds, and nuts Refined flour and rice are thiamine enriched Q: Thiamine (B1) Deficiency Answer: Psychologic distr...

LML4810 PORTFOLIO MEMO - MAY/JUNE 2023 - SEMESTER 1 - UNISA - (DETAILED ANSWERS WITH FOOTNOTES AND A BIBLIOGRAPHY - DISTINCTION GUARANTEED!) GENERAL BACKGROUND TO THE FACTUAL SCENARIO Rashid has just been awarded a doctorate degree in genetic biology from the University of Cape Town. In order to partially fund his study fees, Rashid started a successful business selling DNA testing kits to clients across the Western Cape province. Rashid has decided to expand his business into a fully onlin...

Mark Scheme (Results) Summer 2023 Pearson Edexcel GCE In Biology A (9BN0 02) Paper 2: Energy, Exercise and CoordinationEdexcel and BTEC Qualifications Edexcel and BTEC qualifications are awarded by Pearson, the UK’s largest awarding body. We provide a wide range of qualifications including academic, vocational, occupational and specific programmes for employers. For further information visit our qualifications websites at or . Alternatively, you can get in touch with us using the deta...

AC-HPAT Prep (Biology, Chemistry, Physics, Math) 188 Questions With Complete Solutions. Most of the cell membrane's specific functions are controlled by: Proteins Alcoholic Fermentation is a form of: Anaerobic Respiration Phagocytosis is a form of: Endocytosis What is a pyruvate? Pyruvate is an important chemical compound in biochemistry. It is the output of the metabolism of glucose known as glycolysis. One molecule of glucose breaks down into two molecules of pyruvate, which are the...

BIOD 171 Final Exam 2023 | (Essential Microbiology) Complete Questions and Answers Graded A+. Describe the primary distinction between prokaryotic and eukaryotic cells. Prokaryotic Cell do not contain a nucleus in which all organelles are present inside of them that carry genetic substances like DNA unlike the Eukaryotic cells that contain a nucleus Answer: Eukaryotic cells have a defined, membrane-bound nucleus that contains the genetic material. Prokaryotic cells do not contain a nucleu...

An aide asks the nurse why people who have neurofibromatosis will show varying degrees of the disease. Which genetic principle should the nurse explain to the aide? Selected Answer: b. Expressivity Correct Answer: b. Expressivity Question 2 1 out of 1 point s Why is potassium able to diffuse easily in and out of cells? Selected Answer: c. Because the resting plasma membrane is more permeable to potassium Correct Answer: c. Because the resting plasma membrane is more permeab...

uestion Number Answer Mark 1(a) The only correct answer is C a place where an organism lives A is incorrect because a group of organisms of different species living in the same area is a community B is incorrect because a group of organisms of the same species living in the same area is a population D is incorrect because the role of an organism is its niche (1) Question Number Answer Additional guidance Mark 1(b)(i) A description that makes reference to three of the following • ...