Operons - Study guides, Class notes & Summaries

Plasmids carrying new genetic traits can be transferred into bacteria by several methods such as heat shock. The bacteria that are transformed and contain recombinant plasmids are often identified by which process? - correct answer Exposing the bacteria to an antibiotic that inhibits cells lacking the resistant plasmid. Cells with the plasmid will be antibiotic resistant and will grow on agar laced with the antibiotic. Operons were one of the first examples of how gene expression is control...

microbiota vs microbiome correct answer: microbiota - organisms microbiome - organisms + genes + genome The gut microbiota contains more than __ cells more than __ species correct answer: 200 trillion cells >1000 species The microbiome contains __x the cells in the human body The gut microbiome is __x larger than the human genome correct answer: 10x cells 150x genome Who came up with the official definition of microbiota? correct answer: Lederberg and McCray, 2001 Microbi...

Suppose that you made a special mutation in the laci protein that blocked its binding to allolactose but did not affect its ability to bind to laco. What effect would this mutation have on: A) the expression of the lac operon? B) the ability the cell to use lactose as carbon source? a. Eliminate expression because it will not be transcribed B. Unable to use lactose as a carbon source Positive control Operons -have poor promoters (absent -35 promoter) -need transcriptional activators to assist ...

MIBO 3500 Exam 3 Scott UGA Questions With Verified Solutions | Latest Updates With Rationales Archaeal phylogeny - ANSWER Difficult to culter & PCR Genomes are recombinogenic classifications are frequently under revision Archaeal Cell Wall does not have peptidoglycan but has - ANSWER pseudopeptidogylcan The archaea Cell wall stains - ANSWER gram positive or negative the archaeal cell wall has NAG and no NAM but - ANSWER NAcetyltasamunyronic acid T/F the archaeal cell wall is NOT ...

How are Darwin's ideas linked to both Mendelian and molecular genetics? - ️️ How can changes in the expression of homeotic genes affect body forms? Examples? - ️️They are the master control gene that can can turn on or off specific genes that can effect the way the organism functions an example is the sickle back fish How did Lyell influence Darwin's thought? - ️️That the earth was slowly evolving to adapt to climate changes How did Malthus influence Darwin's thought? - ️️m...

MIBO 3500 Exam 3 Scott UGA Questions With Verified Solutions | Latest Updates With Rationales Archaeal phylogeny - ANSWER Difficult to culter & PCR Genomes are recombinogenic classifications are frequently under revision Archaeal Cell Wall does not have peptidoglycan but has - ANSWER pseudopeptidogylcan The archaea Cell wall stains - ANSWER gram positive or negative the archaeal cell wall has NAG and no NAM but - ANSWER NAcetyltasamunyronic acid T/F the archaeal cell wall is NOT ...

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 Identi...

Biology 2 Exam Lac Operon Questions And Answers 2023

FRNSC 420 - EXAM 4 PRACTICE QUESTIONS AND ANSWERS (100% PASS) positive allosteric regulation - Answer️️ -binding of a regulatory molecule to an enzyme induces a conformation change, increasing the enzyme's affinity for a substrate - proteins are activators = enhance RNAP binding and/or induce conformational change, can change binding constant (KB) or rate constant (kf), lowers activation energies negative allosteric regulation - Answer️️ -bound regulatory molecule must release ...

Micro 201 Exam 3 (3) - Lac Operon With Complete Solutions 2023