Lac operon Guías de estudio, Notas de estudios & Resúmenes
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![MICR 3033 Exam #4 Questions with complete solutions](/docpics/5369642/664b20ecb264f_5369642_121_171.jpeg)
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MICR 3033 Exam #4 Questions with complete solutions
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All cells that make up an organism contain the exact same DNA sequence (genome) however individual cell-types look and function very differently. Why? Correct Answer-each cell-type expresses a unique set of genes of the genomic DNA. 
 
Speaking of genotype and phenotype how are these terms defined? Correct Answer-the genotype defines the genetic information (gene) and the phenotype the outcome of gene expression. 
 
Which of the following describes a functional gene? Correct Answer-a gene is def...
Genetics, Third Exam: Lac Operon Exam With Complete Solutions 2023
![BIO 111 FINAL EXAM QUESTIONS AND ANSWERS LATEST 2024/2025 (100% CORRECT)](/docpics/4716143/65eeccd0e9291_4716143_121_171.jpeg)
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BIO 111 FINAL EXAM QUESTIONS AND ANSWERS LATEST 2024/2025 (100% CORRECT)
- Examen • 12 páginas • 2024
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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...
![CBE 235 Final questions with 100% correct answers 2024](/docpics/5131633/662e50c5a28c1_5131633_121_171.jpeg)
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CBE 235 Final questions with 100% correct answers 2024
- Examen • 14 páginas • 2024
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CBE 235 FinalLac Operon - correct answer -involved in heating lactose: inducible operon 
1) The lactose repressor protein coded by Lacl bound to the operator tightly near the mRNA start site, blocking the ability of RNA poly to bind 
2) Lactose introduced--> Lac repressor binds to lactose and changes conformation such that it can no longer bond to the operator 
3) RNA poly can access the promoter and transcription goes 
4) LacZ,LacY,LacA are transcribed 
 
Gregor Mendel Experiment - correct a...
![BIO 1A03 Test 2 Review (2023/2024) Already Graded A](/docpics/3788099/654a774d51069_3788099_121_171.jpeg)
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BIO 1A03 Test 2 Review (2023/2024) Already Graded A
- Examen • 32 páginas • 2023
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BIO 1A03 Test 2 Review (2023/2024) Already Graded A What is needed for prokaryote growth Nutrient-rich environment containing amino acids, carbohydrates, vitamins, nucleotides, favourable temperature 
housekeeping genes required all the time for vital functions Constitutively expressed includes structural proteins, ribosomal proteins, RNAP, DNAP allow for constant maintenance 
Regulated genes turned on/off when needed includes enzymes needed to channel growth/division 
Beta-Glalactosidase enzyme...
Biology 2 Exam Lac Operon Questions And Answers 2023
![CBE 235 Final Question and answers rated A+ 2023/2024](/docpics/4033429/657cf56e28033_4033429_121_171.jpeg)
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CBE 235 Final Question and answers rated A+ 2023/2024
- Examen • 14 páginas • 2023
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CBE 235 Final Question and answers rated A+ 2023/2024 Lac Operon - correct answer -involved in heating lactose: inducible operon 
1) The lactose repressor protein coded by Lacl bound to the operator tightly near the mRNA start site, blocking the ability of RNA poly to bind 
2) Lactose introduced--> Lac repressor binds to lactose and changes conformation such that it can no longer bond to the operator 
3) RNA poly can access the promoter and transcription goes 
4) LacZ,LacY,LacA are transcribe...
Micro 201 Exam 3 (3) - Lac Operon With Complete Solutions 2023
![Biology 1000 – Principles of Biology ( BioS 115 Core II: Genetics) Exam Study Guide](/docpics/5071700/66262f1688dd2_5071700_121_171.jpeg)
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Biology 1000 – Principles of Biology ( BioS 115 Core II: Genetics) Exam Study Guide
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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...
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