Lactose operon Samenvattingen, Notities en Examens
Op zoek naar een samenvatting over Lactose operon? Op deze pagina vind je 185 samenvattingen over Lactose operon.
Alle 185 resultaten
Sorteer op
-
ASU BIO 340 Exam 3 | WITH QUESTIONS AND ANSWERS 100% VERIFIED
- Tentamen (uitwerkingen) • 5 pagina's • 2023
-
- €8,06
- 3x verkocht
- + meer info
ASU BIO 340 Exam 3 | WITH QUESTIONS AND ANSWERS 100% VERIFIED 
 
What will be the effect on transcription when an inhibitor is in play? 
A. Allow transcription B. Prevent transcription - B Explanation: An inhibitor prevents activator from binding to DNA; activators are used in positive regulation (increasing transcription) - thus, the inhibitor prevents the activator from positive regulating (increasing) transcription. 
What will be the effect on transcription when an inducer is in play? 
A. A...
-
TAMU bio 111 lab exam 2 review (2023/2024) already passed
- Tentamen (uitwerkingen) • 14 pagina's • 2023 Populair
-
Ook in voordeelbundel
-
- €9,48
- 2x verkocht
- + meer info
TAMU bio 111 lab exam 2 review (2023/2024) already passed What is the difference between the coding and non-coding region? Coding region: comprised of genes that encode proteins (instructions that determine traits) and makes up 1-2% of human DNA. • Noncoding region: makes up 98-99% of human DNA, contains STRs and is responsible for regulatory functions such as gene transcription. 
What are STRs? Short-tandem repeats (STRs) are unique repeating patterns of the same nucleotide sequence. They can...
-
Edexcel a level biology question paper 2 june 2023 salters Nuffield + mark scheme
- Tentamen (uitwerkingen) • 65 pagina's • 2024
-
- €12,33
- 1x verkocht
- + meer info
Please check the examination details below before entering your candidate information 
Candidate surname Other names 
Centre Number Candidate Number 
Pearson Edexcel Level 3 GCE 
Friday 16 June 2023 
Morning (Time: 2 hours) Paper reference 9BN0/02 
Total Marks 
Biology A (Salters Nuffield) 
Advanced 
PAPER 2: Energy, Exercise and Coordination 
You must have: 
Scientific calculator, pencil, ruler 
Instructions 
• Use black ink or ball-point pen. 
• Fill in the boxes at the top of this page wi...
-
GCU BIO 181 FINAL EXAM 4 with Complete Solutions
- Tentamen (uitwerkingen) • 6 pagina's • 2023
-
- €9,00
- 1x verkocht
- + meer info
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...
-
Exam 3: BIO1201/ BIO 1201 (Latest 2024/ 2025 Update) | Questions and Verified Answers| 100% Correct| Grade A – LSU
- Tentamen (uitwerkingen) • 49 pagina's • 2024
-
Ook in voordeelbundel
-
- €10,43
- + meer info
Exam 3: BIO1201/ BIO 1201 (Latest 2024/ 2025 Update) | Questions and Verified Answers| 100% Correct| Grade A – LSU 
 
Q: How are genes coordinately controlled in eukaryotic cells? 
 
Coordinately controlled genes in eukaryotic cells share a set of control elements. 
 
Coordinately controlled genes in eukaryotic cells are activated by the same chemical signals. 
 
Coordinately controlled genes in eukaryotic cells are located together on the same chromosome. 
 
 
Answer: 
Coordinately controlled...
-
Bio 115 WVU Final (Dr. Barry) Questions and Answers Graded A+
- Tentamen (uitwerkingen) • 19 pagina's • 2024
-
Ook in voordeelbundel
-
- €9,48
- + meer info
Bio 115 WVU Final (Dr. Barry) Questions 
 
and Answers Graded A+ 
 
For e. coli , the lacl repressor gene is expressed when? The lacl repressor gene is always 
expressed 
 
Where does the lacl repressor gene attach The lacl repressor gene codes for a protein which 
attaches to the lac operon operator 
 
In the absence of lactose, does the lacl repressor gene bind to DNA Yes, in the absence of 
lactose, the lacl repressor gene binds to DNA preventing transcription; this is an example of 
negative...
-
Biology 1000 – Principles of Biology ( BioS 115 Core II: Genetics) Exam Study Guide 2024/2025
- Tentamen (uitwerkingen) • 14 pagina's • 2024
-
- €13,27
- + meer info
Biology 1000 – Principles of Biology ( BioS 115 Core II: Genetics) Exam Study Guide 2024/2025. Review discussion about Breast Cancer 
Breast Cancer (BRCA1 and BRCA2) 
c. Provides instructions for making a protein that acts as a tumor suppressor 
d. Prevents cells from growing and dividing 
e. Accounts for 30-40% of families with breast cancer cases 
Penetrance and BRCA 
a. Refers to the risk of developing breast and ovarian cancer 
b. A reliable estimate of penetrance is crucial for medical co...
-
BIO 1A03 Test 2 Review (2023/2024) Already Graded A
- Tentamen (uitwerkingen) • 32 pagina's • 2023
-
Ook in voordeelbundel
-
- €9,48
- + meer info
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 1000 – Principles of Biology ( BioS 115 Core II: Genetics) Exam Study Guide Questions With Answers.
- Tentamen (uitwerkingen) • 14 pagina's • 2024
-
- €15,65
- + meer info
Biology 1000 – Principles of Biology ( BioS 115 Core II: Genetics) Exam Study Guide Questions With Answers. 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 
# wit...
-
CBE 235 Final questions with 100% correct answers 2024
- Tentamen (uitwerkingen) • 14 pagina's • 2024
-
Ook in voordeelbundel
-
- €17,07
- + meer info
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...