Structural genes code for Study guides, Class notes & Summaries

The tryptophan operon is a repressible operon that is: - ANSWER-Turned off whenever tryptophan is added to the growth medium. The lactose operon is likely to be transcribed when: - ANSWER-The cyclic AMP and lactose levels are both high within the cell. For a repressible operon to be transcribed, which of the following must occur? - ANSWER-RNA polymerase must bind to the promoter, and the repressor must be inactive. Which of the following, when taken up by the cell, binds to the represso...

Prepare: History of Microbiology • Does not have membrane bound cellular organelles and has cell wall made up of peptidoglycan: • According to Binomial system the scientific name of any living organism has (select all that apply): • He was the first person to use swan neck flask to disapprove the theory of spontaneous generation: • Father of Microbiology who called microbes animalcules: • Which field of microbiology monitors and controls the spread of diseases in communities? S...

GCD Final Test Questions with Complete Solutions Cell theory is the idea that - Answer-all living matter consists of cells, cells are the structural and functional units of life, and all cells come from preexisting cells. Endosymbiosis has been proposed as the explanation for the origin of a defining cellular characteristic of all - Answer-Eukaryotes You are interested in studying a gene called CFTR because mutations in this gene cause cystic fibrosis. You have made a line of mice that l...

PLTW BIOMEDICAL SCIENCES - FINAL EXAM 2024 What is the relationship between DNA and genes? - correct answer A gene is a section of a DNA molecule that contains the information to code for the specific protein. What are the structural components of DNA? - correct answer Nucleotides What are the structural components of a nucleotide? - correct answer Deoxyribose sugar, Nitrogenous base, Phosphate group What is the "A" base? What does it pair with? - correct answer Adenine; Thymine ...

Abnormalities in structure or synthesis of hgb molecule - ANSWER-What is the cause of hemoglobinopathies? Deletions or substitutions in globin chains - ANSWER-Qualitative defects result in what? Sickle cell anemia - ANSWER-What is the most common hemoglobinopathy? 1. Class of globin chain involved 2. Severity of hemolysis 3. Compensatory globin chains - ANSWER-Hemoglobinopathy presentation depends on: beta - ANSWER-Most hgb variants are seen on which globin chain? Hgb electrophoresis - ...

BIO 111 FINAL EXAM QUESTIONS AND ANSWERS LATEST 2024/2025 (100% CORRECT) What is the first mRNA processing step? - ANSWER 5' capping Different mRNAs are made from the same initial pre-mRNA by ________. - ANSWER alternative splicing RNA transcription begins at a ________. - ANSWER promoter ________ protect(s) the pre-mRNA molecule. - ANSWER the 3' poly-a tail The process of pre-mRNA splicing removes ________. - ANSWER introns Spliced ________ differ in their exons. - ANSWER mRNAs Identif...

What is the relationship between DNA and genes? A gene is a section of a DNA molecule that contains the information to code for the specific protein. What are the structural components of DNA? Nucleotides 0:06 / 0:15 Brainpower Read More What are the structural components of a nucleotide? Deoxyribose sugar, Nitrogenous base, Phosphate group What is the "A" base? What does it pair with? Adenine; Thymine

Explain the concepts of penetrance and expressivity Penetrance is the percentage of cases in which a certain phenotype is expressed. There are two types: i. Complete Penetrance: when 100% is correlated to the genotype. So, all express the same thing. ii. Incomplete: this is when some are identical, and others are different. Penetrance= # with genotype showing phenotype x 100 # with the genotype Expressivity is the type or degree to which a penetrant gene ( the genes carrying the mutatio...

MMSC 490 Exam 1 with 100% Correct Answers cell wall - Answer ️️ --organelle of bacteria and plants -rigid layer composed of carbohydrates and proteins -porous and easily penetrated plasma membrane - Answer ️️ --organelle of bacteria, plant and animal cells -bilayer of phospholipids and associated proteins -provides separation from inside of cell and external environment nucleoid - Answer ️️ --organelle of bacteria -contains 1 circular molecule of DNA -not surrounded by membr...

What is the Structural and Functional Unit of any complex organism - correct answer Cell Characteristics of Healthy Cells - correct answer -Take in only the nutrients needed to function properly -Grow to a fairly uniform size and shape -Multiply only when needed or directed to -Don't infringe on each other's space -Communicate and cooperate with each other for the good of the whole organism Characteristics of Unhealthy Cells - correct answer -Take in all the nutrients they can get, t...