Polynucleotides - Study guides, Revision notes & Summaries

BSC 2346 Module_05_Midterm_Exam_Review Mid-Term Exam Review: PowerPoint Lecture Topics/Objectives Module 01 Scientific Method Review • Define the scientific method. The way we seek new knowledge • Label the steps to the scientific method. Observation, measurement, experiment, formulation, testing & modification of hypothesis • Define the variables associated with the scientific method. Independent variable-one the scientist changes Dependent variable-The variable scientist is wat...

BIO 1150 Exam 4 questions and answers graded A+ What are four ways that a psychoactive drug may alter normal neurotransmitter signaling? -drug may stimulate release of neurotransmitter and enhance response of receiving neuron -drug may inhibit release of neurotransmitter and dampen response of neuron -may increase and prolong effect of neurotransmitter -drug may bind to receptor and effect activity of receiving neuron What is a gene? -segment of DNA on a chromosome that directs synt...

What is the main component of the cell and what does it contain? - The nucleus; it contains the nucleolus What is the nucleolus composed of(4)? - RNA, Most of the cellular DNA, DNA-binding proteins, & histones What do histones do and why are they important? - They regulate DNA activity. -Histones bind to DNA and fold it into chromosomes for cell division. -DNA chain in eukaryotic cells are extensive so risk of breakage is high What are ribosomes? - RNA-protein complexes (nucleoproteins)...

What are the four DNA nucleobases? - Answer-Adenine Guanine Cytosine Thymine What is the structure of a purine and pyrimidine ? How does the numbering work? - Answer- What is the structure of (D-)2-deoxyribose - Answer-Aldopentose, cyclises in water In DNA, it exists as Furanose. To relieve the ring strain, A C' endo sugar ring pucker forms Pyranose form is dominant in solution What is a nucleoside vs nucleotide? - Answer- What is the nomenclature of nucleosides? - Answer-Pyrimidine --&...

Bio 181 practice Exams 120 Questions with Verified Answers Which of the following are NOT effective for mastering new ideas and forming long-term memories that can be accessed and used months or even years later? (choose ALL) A. Concentrating intense studying to the hours before an exam. B. sleep C. reading and re-reading the textbook chapters and notes several times D. practicing remembering ideas and vocabulary through self-quizzing E. elaboration: putting ideas in your own words and...

What is the difference between human anatomy and human physiology ? - correct answer Human Anatomy is the study of human body structure and relationship... Human physiology is the study of body functions. Name the 3 subdivisions of Human Anatomy - correct answer 1. Gross Anatomy 2. Microscopic Anatomy 3. Developmental Anatomy (Changes over time Describe one of the subdivisions of human anatomy (Gross Anatomy) - correct answer It is the study of macroscopic body structure...

BIOL 1020 Test Prep with Complete Solutions Graded A+ Functional Groups *** Components of organic molecules, involved in reactions Hydroxyl -OH *** Polar due to electronegative oxygen forms hydrogen bonds with water. Dehydration reaction between hydroxyl and carboxyl= *** ester linkage Unsaturated fats usually have BLANK bonds *** cis bonds Artificially hydrogenated bonds usually have BLANK bonds *** trans 2 fatty acids+phosphate group+glycerol *** Phospholipid carbon skelet...

1) When does meiosis take place? Human females: From 3 months of age prenatal (in the womb) until menopause (40's to 50's) Human males: From puberty (12-13) until death 2) Where does meiosis take place? In the gonads: ovaries for females testes for males. 3) When does mitosis take place? Mitosis takes place from conception (birth) until death. 4) Where does mitosis take place? Mitosis takes place in all cells of the body. 5) How many daughter cells are produced in mitosis...

What is the main component of the cell and what does it contain? - The nucleus; it contains the nucleolus What is the nucleolus composed of(4)? - RNA, Most of the cellular DNA, DNA-binding proteins, & histones What do histones do and why are they important? - They regulate DNA activity. -Histones bind to DNA and fold it into chromosomes for cell division. -DNA chain in eukaryotic cells are extensive so risk of breakage is high What are ribosomes? - RNA-protein complexes (nucleoproteins)...

OCR biology A level, section 3, nucleotides A summary of key concepts ranging from nucleotides and polynucleotides to protein synthesis and transcription.