Telomere - Study guides, Class notes & Summaries

One of the most prevalent chronic illnesses in US adolescents asthma, 9% of the population is diagnosed Dr. Cavigelli's Experiment to investigate mental health consequences of asthma studied two phenotypes (airway inflammation and labored breathing) Anxiety = avoiding the open arms of the raised plus maze She induced airway inflammation and labored breathing in adolescent rodents to determine which asthma symptom caused adult anxiety Results of Dr. Cavigelli's experiment labored breath...

Biol 230 Exam 2 Questions and Answers Already Passed What makes cell same or different? - ️️ Different cell types have the same gene, protein makes cell different. What is central dogma (a.k.a. gene expression)? - ️️ genetic information (DNA strand) is transcribed into RNA and then translated into proteins What is exon? - ️️ RNA sequences in the primary transcript that are found in the mRNA What is intron? - ️️ 1.a non-protein coding 2.RNA sequences between exons that are...

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...

Gerontological Nursing COMPLETE EXAM QUESTIONS AND CORRECT DETAILED ANSWERS|AGRADE 1962 - ANSWER- 1st meeting of ANA Conference Group on Geriatrics Nursing practice 1966 - ANSWER- became division of geriatric nursing, gains full recognition as nursing specialty 1970 - ANSWER- published standards for its practice 1975 - ANSWER- 1st 14nurses recaived certificate for excellence in the practice 1976 - ANSWER- geriatric nursing division became gerontological nursing Gerontological nursing...

Griffith would have isolated only live R cells from the mouse host. - Griffith's experiment demonstrated transformation because a mouse injected with live R and heat-killed S strains of Streptococcus pneumoniae resulted in death of the mouse and the isolation of live R as well as live S cells. Hypothesize as to the type of cells that Griffith would have observed if transformation had not occurred. Telomere - Which of the following is a region of DNA at the end of a linear chromosome? DNA ...

Simple Sequence DNAs are known to be located in which areas of the chromosome - found in centromere and some in telomere; interacts with the kinetochore Simple Sequence DNA - constitutes about 6% of the human genome, also called satellite DNA, concentrated near the centromere, backward slippage is used, number of repeats are vastly different, simple sequence is mobile; doesn't code for anything Gene - a unit of heredity that is transferred from a parent to offspring and is held to determin...

What is the end replication problem? With consecutive rounds of DNA replication, the ends of the DNA, the telomeres will become shorter and shorter What is the Hayflick Limit? -Telomere provide a means for "counting" cell division -The number of times a normal human cell population will divide until cell division stops -Empirical will get slightly shorter with each new cell division until they shorten to a critical length (this is what the graph shows) What are the main functions of telomere...

Overall organizational structure of the human chromosome - correct answer normally contain a single, immensely long DNA double helix; to avoid tangling and to manage the long chain efficiently they are complexed with various proteins and sometimes noncoding RNAs to form chromatin that undergoes different levels of coiling and compaction Chromatin - correct answer the structure of DNA complexes with pro...

Friedrich Miescher - discovered DNA in 1869 But did not know (Isolated phosphate) rich acidic compounds Frederick Griffith - Discovered transformation during an experiment that involved injecting mice with smooth S cells, rough R cells, heat-killed S cells, and heat-killed S cells with living R cells. Avery, MacLeod, McCarty - Identified the heritable substance as DNA Used test tubes- vitro Hershey and Chase - performed experiments showing that DNA is the genetic material of a phage known...

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...