Telomere shortening Study guides, Class notes & Summaries

TEST BANK Ebersole and Hess’ Gerontological Nursing & Healthy Aging 5th Edition TouhyChapter 01: Introduction to Healthy Aging MULTIPLE CHOICE 1. A man is terminally ill with end-stage prostate cancer. Which is the best statement about this man’s wellness? a. Wellness can only be achieved with aggressive medical interventions. b. Wellness is not a real option for this client because he is terminally ill. c. Wellness is defined as the absence of disease. d. Nursing interventions can help emp...

Test Bank for Genetics A Conceptual Approach, 7th Edition Benjamin Pierce Test Bank for Chapter 2: Chromosomes and Cellular Reproduction Multiple-Choice Questions 1. Which of the following statements is false? a. Errors in chromosome separation are rarely a problem for an organism. b. Errors in chromosome separation can result in a miscarriage. c. Errors in chromosome separation can result in cancer. d. Errors in chromosome separation can result in a child with severe handicaps. e. Erro...

When does adulthood begin? - correct answer 18-25 Role transitions in adulthood - correct answer New responsibilities, vary by history and age Marriage Menarche More self control and concern with autonomy menarche - correct answer the first menstrual period emerging adulthood - correct answer for some people in modern cultures, a period from the late teens to mid-twenties, bridging the gap between adolescent dependence and full independence and responsible adulthood ...

This is the term that refers to biological aging correct answer: Senescence The "genetic programming" theory of aging proposes the existence of _____________ that control biological changes A. Telomeres B. Heritability C. Free radicals D. Aging Genes correct answer: D. Aging Genes Theories about aging can be organized into two groups, those that emphasize __________ and those that emphasize _________ . correct answer: programmed effects of specific genes & cumulative effects of...

Biological aging: DNA-Cellular Theory correct answer: Programmed effects: cancer Random Events: telomere shortening Biological Aging: Organ-Tissue Level correct answer: Gradual fail of endocrine system Declines in immune functioning Motor Performance correct answer: Peak performance reached at age 25 Obesity correct answer: Hereditary, decline in activity, increase in calories. Can be limited with exercise and low calorie diet. Piaget correct answer: Postformal thought Per...

Similarities between eukaryotic and prokaryotic cells 1) Semi-conservative 2) Bidirectional Prokaryotic cells 1) Circular DNA 2) Single origin of replication Eukaryotic cells 1) Linear DNA 2) Multiple origins of replication New strands are always synthesized from: 5' --> 3' end of each strand Template strand is read: 3' --> 5' Chain extension occurs: by adding a dNTP to free 3' end of growing polynucleotide chain DNA polymerase DNA s...

BIOD_152_Final_Exa m Correct Answer Replication of DNA begins at a single origin of replication and then proceeds the entire length of the strand, in one direction (T/F) False What enzyme is responsible for relieving the stress associated with the twisting and untwisting of a DNA strand during replication. Topoisomerase As a replicated DNA strand elongates, what enzyme is responsible for adding nucleotides? DNA polymerase The energy required to add a nucleotide to a growing chain is s...

Cellular Theories related to aging correct answers telomeres, cross-linking, and free radicals Metabolic Theories related to aging correct answers rate of living theories, caloric restriction Genetic programming theory related to aging (aka program cell death) correct answers cells are programmed to die; appears to be the function of physiological processes, the innate ability of cells to self-destruct telomere theory correct answers there is a limit to how often cells may divide before...

Two sources of variability that arises during meiosis and fertilizations - 1. Crossing over 2. Independent Assortment Crossing Over - homologous chromosomes pair... each sister chromatid consists of a single stranded DNA molecule What is the result of the crossing over between homologous chromatids? - The exchange of segments Where do the homologous chromosomes separate? - First meiotic division What is produced after meiosis II - two daughter chromosomes have parental combinations of al...

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...