Lac-operon Studienführer, Klassennotizen & Zusammenfassungen
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BIO 1A03 Midterm 2 Questions and Answers Graded A
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BIO 1A03 Midterm 2 Questions and Answers Graded A Prokaryotic growth and cell division -nutrient-rich environment -favorable temperatures 
Housekeeping genes -genes required at all times for normal function -all ways transcribed and translated -allow constant maintance for general cellular activity -e.g. structural protein of a cell, DNA and RNA polymerase, genes coding for ribosomal proteins -constitutive 
Regulated genes genes that can be turned on and off at a needed basis 
Francois Jacob and...
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Zusammenfassung Genetik 1 Prof Thomas U Mayer
- Zusammenfassung • 79 Seiten • 2022
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Es sind alle 13 Vorlesungen von Genetik 1 von Prof Thomas U Mayer zusammengefasst. Die 1. Vorlesung ist nicht in der Zusammenfassung zu finden, weil dort nur Fragen/Infos behandelt wurden und somit keine wichtigen thematischen Infos. 
Vorlesung 2: Lebensformen 
Vorlesung 3: DNA Struktur 
Vorlesung 4: Proteine 
Vorlesung 5: Transkription 
Vorlesung 6: Lac Operon und Translation I 
Vorlesung 7: Translation II 
Vorlesung 8: Translation III 
Vorlesung 9: Transformation, Konjugation 
Vorlesung 10: R...
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BIO 13 Practice Test 40 Questions with Verified Answers,100% CORRECT
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BIO 13 Practice Test 40 Questions with Verified Answers 
 
RNA contains the sugar 
a. ribose. 
b. deoxyribose. 
c. glucose. 
d. lactose. - CORRECT ANSWER a. ribose. 
 
Unlike DNA, RNA contains 
a. adenine. 
b. uracil. 
c. phosphate groups. 
d. thymine. - CORRECT ANSWER b. uracil. 
 
Which of the following are found in both DNA and RNA? 
a. ribose, phosphate groups, and adenine 
b. deoxyribose, phosphate groups, and guanine 
c. phosphate groups, guanine, and cytosine 
d. phosphate grou...
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BIO 214 EXAM 3 Practice EXAM 57 Questions with Verified Answers,100% CORRECT
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BIO 214 EXAM 3 Practice EXAM 57 Questions with Verified Answers 
 
In the lac operon, CAP binding to the CAP site of the promoter ____. 
a. occurs when glucose is present 
b. inhibits RNA polymerase from binding to the promoter 
c. occurs when cAMP is absent 
d. helps the repressor protein bind to the operator 
e. enables RNA polymerase to transcribe the operon's genes - CORRECT ANSWER enables RNA polymerase to transcribe the operon's genes 
 
Gene regulation in both prokaryotes and eukaryotes...
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pGLO Lab Quiz | 55 Questions with 100% Correct Answers | Verified
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what was function of incubation on ice - Incubation slows down the movement of the bilayer 
in cell. slows fluid cell membrane- fluid mosatic model 
what was the function of adding calcluim chloride - Addition of calcium chloride solutionthe calcium has a positive charger so it shields the negative phosphate in the nucliotide. You 
nutrelize it so it can go through the cell membrane because it is non polar. 
Adding the calcium chloride serves to shield the negative charge of DNA phosphate groups...
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Genetics Second Exam Practice Test 150 Questions with Verified Answers,100% CORRECT
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Genetics Second Exam Practice Test 150 Questions with Verified Answers 
 
Which organism has polycistronic mRNA? (eukaryotic or prokaryotic) - CORRECT ANSWER Prokaryotic 
 
Do prokaryotes undergo splicing/processing? - CORRECT ANSWER No 
 
Where are attenuater sequences found? (what type of organism and what class of operons?) - CORRECT ANSWER In prokaryotic amino acid operons 
 
Do prokaryotic mRNA ALWAYs encode trans-acting factors? - CORRECT ANSWER No 
 
Which of the following statements is t...
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Genetics Exam 2 practice exam 107 Questions with Verified Answers,100% CORRECT
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Genetics Exam 2 practice exam 107 Questions with Verified Answers 
 
In five Hfr strains, each of which was used to build a time-of-entry map, the genes entered the recipient cells as follows: 
Strain 1: S L A C T F 
Strain 2: N P F T C A 
Strain 3: T F P N U Y 
Strain 4: S H Y U N P 
Strain 5: U N P F T C 
Which of the following represents a correct compilation of these results? 
A) S L A C T F P N H C U 
B) N P F T S L A C H U T 
C) T C A L S P N U Y H 
D) U N P F T C A L S T F 
E) S L A C T F...
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AP Biology Reading Guide Chapter 15 and 16: Regulation of Gene Expression & Development, Stem Cells and Cancer
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AP Biology Reading Guide Chapter 15 and 16: Regulation of Gene Expression & Development, Stem Cells and Cancer. 
Compare and contrast the lac operon and the trp operon. (Remember that compare means “to tell how 
they are similar,” and contrast means “to tell how they are different.”) 
Lac is inducible and trp operon is repressible. They both have the three components of an operon: an 
operator, promoter, and regulatory gene. They are different because the trp repressor is inactive alone ...
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AGR 3303 Exam 2 T/F Questions WITH COMPLETE SOLUTIONS
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Regulatory genes are genes whose products control the transcription or translation of other genes correct answer: True 
 
In bacterial operon, promoter is bound by regulator protein to regulate transcription correct answer: False 
 
A repressible gene should be under control by a repressor correct answer: False 
 
For a gene under negative control, the regulator protein is a repressor correct answer: True 
 
For a gene under positive inducible control, regulator protein is a activator and no...
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QBM Exam Questions And Answers With Complete Solutions 2024
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QBM Exam Questions And Answers With 
Complete Solutions 2024 
What are the first three steps for starting a project? - answer1 ) Choose 
2) Read literature 
3) Obtain DNA sequence 
Once you obtain the DNA sequence in the beginning of a project, BLAST will allow what? - 
answer"Basic Local Alignment Search Tool" 
- To search for homology (duplication events) 
- Can predict protein, molecular weight, pI, and extinction coefficient 
- Predict the secondary/tertiary structure, transmembrane helice...
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