Mutants - Study guides, Class notes & Summaries

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...

Nucleoid is a region/structure found only in ____ cells. a) prokaryotic b) eukaryotic c) bacterial d) Both A and C - Answer-Prokaryotic/bacterial A plasmid is double-stranded DNA. True or false? - Answer-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 - Answer-Protein DNA polymerase is a(n) a) lipid b) polysaccharide c) enzyme d) nucelic acid - Answer-c- enzyme DNA transcri...

Incomplete penetrance Penetrant organisms have the genotype and express the phenotype. Non penetrant organisms have the genotype but don't express the phenotype. (penetrant)/(total penetrant+ non penetrant) No gene interaction 9:3:3:1 9/16 A_B_ 3/16 A_bb 3/16 aaB_ 1/16 aabb Complementary gene interaction 9:7 9/16 A_B_ 7/16 A_bb or aaB_ or aabb Duplicate gene interaction 15:1 15/16 A_B_ or A_bb or aaB_ 1/16 aabb Dominate gene interaction 9:6:1 9/16 A_B_ 6/16 A_bb or aaB_ 1/16 aabb Dominate ...

LCCC Microbiology Kestler Exam 4 Questions & Answers 2024 What is therapeutic index and what does it tell you? - ANSWERSTI = toxic dose (to patient) / MIC (to organism) it tells us selective toxicity What are 3 targets of drug therapy? - ANSWERS1. cell wall/membrane 2. ribosomes 3. protein synthesis Explain the concept of MIC. - ANSWERSMIC = minimal inhibitory concentration, it is the lowest amount needed to affect organism Correctly explain the concept of drug resistance. - A...

Anticodon - A specialized base triplet at one end of a tRNA molecule that recognizes a particular complementary codon on an mRNA molecule. Bioinformatics - Computational information systems and analytical methods applied to biological problems such as genomic analysis. Comparative Genomics - The study of relationships between genomic sequences of multiple species. Complementary Bases - Two bases that pair together. A is complementary to T and C is complementary to G. Deoxyribonucleic Aci...

Central Dogma of Biology correct answers DNA-transcription->RNA-translation->protein Gene expression correct answers The process by which information encoded in DNA directs the synthesis of proteins or, in some cases, RNAs that are not translated into proteins and instead function as RNAs. Proteins are the link between _________ and ________. correct answers genotype; phenotype Nutritional Mutants in Neurospora correct answers Bread mold was exposed to x-rays and mutants were crea...

FAU Dr. Brooks - Biological Principles - Unit 3 Comprehensive Study Guide Rated A+ What is the cell theory? All organisms are made come from cells and are made up of cells Cells must reproduce for what 2 reasons? Cells must reproduce either to perpetuate the species or create a multi-celled individual Cell reproduction involves which two processes? Cell reproduction involves mitosis (duplication and division of the nucleus) and cytokinesis (division of the rest of the cell) If ...

CMMB 403 Tutorial Quiz 2 Question and answers 2024 verified to passWhat characterizes each abdominal segment of the ventral side of the larva? - correct answer anterior denticles (point posteriorly) and a posterior naked region, side by side Who looked at fly embryo to identify segmentation genes? - correct answer Christiane Nusslein-Volhard and Eric Wieschaus how do we identify genes or genotypes responsible for a particular phenotype? - correct answer knockout or induce a mutation in ...

Key terms and concepts Biology 205 - Genetics Anticodon - answerA specialized base triplet at one end of a tRNA molecule that recognizes a particular complementary codon on an mRNA molecule. Bioinformatics - answerComputational information systems and analytical methods applied to biological problems such as genomic analysis. Comparative Genomics - answerThe study of relationships between genomic sequences of multiple species. Complementary Bases - answerTwo bases that pair together. A i...

The biodiversity paper states that we can help protect biodiversity by doing all of the following EXCEPT: 1. Protecting insects which play a crucial role in preying on pests and serve as food for those higher on the food chain than them 2. Promoting ecotourism so wildlife is worth more than alive 3. Eating a lower proportion of plant foods than animal foods 4. Taking care not to introduce invasive species 5. Slowing the rate of removal of water from rivers and lakes for irrigation and human...