Mutagens - Study guides, Class notes & Summaries

SFSU Bio 230 Study Guides for Exams 1, 2, 3, and 4 Questions and Answers Grade A+ How are chromosomes, genes, alleles, proteins, traits and mutations related? - ️️ Chromosomes contain DNA which contains genes that can vary and are then called alleles, which code for proteins that can be expressed as traits. Mutations happen. What causes cancer?Are all mutations caused by mutagens? - ️️ Cancer can be caused by inheritance or sporadic mutations (mutagens). Not all mutations are cause...

13. Genetic effects from exposure to ionizing RAdiation occur as a result of RAdiation- induced damage to the DNA molecule in which of the FOllowing? 1. Sperm of a man 2. Ova of a woman 3. Somatic cells of men and women a. 1 only b. 2 only c. 3 only d. 1 and 2 only ANS: D 14. What do agents such as specific chemicals, viruses, and ionizing RAdiation have in common? a. Nothing b. They can increase the frequency of mutations in only those members of the population who are already geneti...

Evolve- Huether: Understanding Pathophysiology Quizzes 1-8 (Midterm) An ordered photographic display of a set of chromosomes from a single cell is a(n): A) metaphase spread. B) autosomal spread. C) karyotype. D) anaphase spread. correct answer: C An error in which homologous chromosomes fail to separate during meiosis is termed: A) aneuploidy. B) nondisjunction. C) polyploidy. D) anaplasia. correct answer: B A somatic cell that does not contain a multiple of 23 chromos...

PUBH 6011 FINAL EXAM LATEST 2022|2023|2024 REAL EXAM QUESTIONS AND ANSWERS/PUBH 6011 FINAL STUDY GUIDE 2022-2024 | A GRADED. Disease and the Environment • Understand the major functions of cells and the difference between viruses, bacteria Viruses are either naked or enveloped. Enveloped can be easily disrupted with alcohols but naked are more stable. Bacteria has different states of living. Some are free to flow while others stack up and create biofilm making them resistant • Explain...

WGU C652 Exam Review (Latest 2024/ 2025 Update) Heredity and Genetics | Questions and Verified Answers| 100% Correct| Grade A Q: chemical modifications of nucleotides Answer: Chemical mutagens can modify bases in DNA and alter their base-pairing properties Q: tetraploidy Answer: containing four homologous sets of chromosomes Q: trisomy Answer: a condition in which an extra copy of a chromosome is present in the cell nuclei, causing developmental abnormalities...

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BIO 205 Exam Questions With 100% Correct Answers Nucleoid is a region/structure found only in ____ cells. a) prokaryotic b) eukaryotic c) bacterial d) Both A and C Prokaryotic/bacterial A plasmid is double-stranded DNA. True or false? True A plasmid-gene or a chromosomal-gene (piece of DNA with a specific product) will always produce a________. a) carbohydrate b) ATP c) Protein d) Lipid Protein DNA polymerase is a(n) a) lipid b) polysaccharide c) enzyme d) nucelic ...

which of the following is most responsible for generating genetic diversity in bacteria? a) rapid asexual reproduction b) environmental mutagens c) selective mating d) metabolic diversity correct answers environmental mutagens during the citric acid cycle, which enzyme is responsible for synthesizing fumarate to succinate? a) fumarase b) malata dehydrogenase c) succinate coenzyme Q reductase d) citrate synthase correct answers succinate coenzyme D reductase which of the following i...

HAZWOPER 40 Exam Prep -Regulation Overview, Toxicology & Hazard Recognition (Latest 2024/ 2025 Update) Questions and Verified Answers| 100% Correct| Grade A Q: Polyurethane foam, when burnt, gives off: Sulfuric acid Cyanide gas Ethane Phosphine Answer: Cyanide gas Q: Animal studies provide most of what we know about the dangerous effects of toxic substances. Humans may react differently than animals exposed to toxic materials. False True Answer: True Q: A(n...

How do we identify mutants? ~ Look at the morphology, differential staining, and chemical testing How do we identify mutagens? ~ Look at the direct effect or perform animal testing What are the four different chemical mutagens? ~ Nitrous acid, nucleoside analogs, ionizing radiation, and UV radiation What does UV radiation do? ~ forms a thymine dimer and disrupts the normal base pairing What is the process where genes are transferred from one bacterium to another as "naked" DN...