Induced mutation - Study guides, Class notes & Summaries

NMU CLS-M: Mycology, Virology, and Parasitology Practicum Exam Already Passed A germ tube-negative yeast is isolated in the laboratory. The isolate is found to be negative for urease and unable to assimilate dextrose, maltose, or sucrose. CMT agar morphology showed blastoconidia only. The organism is most likely: Select one: a. Candida albicans b. Candia parapsilosis c. Torulopsis glabrata d. Geotrichum candidum Torulopsis glabrata One of the most critical diagnostic criteria in...

Question : The major impact of the physiological changes that occur with aging is: Student Answer: Reduced physiological reserve Instructor Explanation: The major impact of all of these physiological changes can be highlighted with three primary points. First, there is a reduced physiological reserve of most body systems, particularly cardiac, respiratory, and renal. Second, there are reduced homeostatic mechanisms that fail to adjust regulatory systems such a...

WGU D027 Course Material Questions and Answers Latest Update, Graded A A 23-year-old woman comes in for prenatal counseling. While completing her family history, she reports her brother has cystic fibrosis. She does not know if she is a carrier. She asks if her children will be affected by the disease. What is an accurate way to determine the likelihood of this patient's children being affected? Correct Answer- A genetic or a carrier test - Cystic fibrosis is a hereditary disease that im...

2 only Radiation exposure to the gonads (sperm & ova) may alter the genetic code in the DNA molecule and cause a mutation in future generations. A radiation induced mutation is always bad! correct answersWhy is radiation exposure to the gonads such a critical concern? 1. The person may become sterile 2. Mutations in offspring may result 3. Gonadal cancer may develop D. Bone marrow correct answersIrradiation of which of the following anatomical areas will affect the production of white...

WGU C652 Objective Assessment (Latest 2024/ 2025 Update) Heredity and Genetics | Prep Questions and Verified Answers| 100% Correct| Grade A Q: How did the Human Genome Project attempt to deal with the social and ethical issues that were bound to arise from the sequencing of the human genome? Answer: In addition to the scientific elements of the project, the organizers of the HGP set up a program called ELSI to address the ethical, legal, and social implications of genomics research. Thi...

Mild burns, cell mutation and cancer are all hazards of what? - Answer-Ionising radiation from x-rays Can X-rays be seen, heard or felt? - Answer-No What is the safe level of use with x-rays? - Answer-There isn't a safe level What does every radiation exposure cause? - Answer-Tissue damage Long term, low level exposure to radiation. - Answer-Stochastic Tissue reactions are... - Answer-Non-cancer damaging effects Random development when exposed to any radiation dose: Heritable effects - m...

You discover a new bacterial operon that is induced by the presence of lead. You find a mutation that results in a mutation in the operator that changes the binding sequence so that the repressor is always bound to it. Would this mutation be rescued by a plasmid with a wild type copy of the operon and why? correct answers Yes, because the repressor would still be able to bind to the operator in the plasmid allowing for normal expression from the plasmid Why is it difficult to find a treatment...

Trinucleotide Repeat Expansion correct answer: Mutation that results in expansion of the number of trinucleotide repeats Trinucleotide Repeat (TNR) correct answer: Sequence of three nucleotides repeated several times in tandem Chromosomal Alteration correct answer: Mutation that involves >100 bp Spontaneous Mutation correct answer: A mutation that arises in the absence of a mutagenic agent. Unavoidable, happens in the natural process Hydrolysis correct answer: The process of...

WGU C785 Biochemistry Unit Exam Questions & Answers Latest 2024/2025 Which level of protein structure is disrupted through the hydrolysis of peptide bonds? Quaternary Tertiary Primary Secondary - Answer ️️ -Primary The primary structure of a protein is the sequence of amino acids held together by peptide bonds. Peptide bonds are formed by dehydration reactions and disrupted by hydrolysis. A mutation in the beta-hemoglobin gene, which results in the replacement of the amino acid glu...

Changes in the physiological variables listed below can alter the affinity of hemoglobin for oxygen. Which of the following will lower the affinity of hemoglobin for oxygen? - ANSWERSIncrease in 2,3 bisphosphoglycerate (BPG) A decreased affinity will increase the rate of oxygen delivery to the tissues. This will occur when pH is low, there is an increase in CO2, protons or 2,3 BPG. The other scenarios (a, c, d) will all increase the affinity for O2. Which of the following proteins is likel...