B galactosidase Samenvattingen, Notities en Examens
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TAMU bio 111 lab exam 2 review (2023/2024) already passed
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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...
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NBME Biochemistry Shelf Exam 2023 Questions and Answers
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What neurotransmitter stimulates release of epinephrine from adrenal medulla? - Answer- acetylcholine 
 
What is a metabolite if epinephrine that suggests epi-secreting carcinoma? What is another assoc symptom? - Answer- metanephrine; assoc with HBP 
 
What does acetazolamide (carbonic anhydrase ib) treat? - Answer- glaucoma, epilepsy, altitude sickness, congestive heart failure 
can cause dehydration 
 
Sickle cell anemia is due to... - Answer- pt mutation of Glu -> val 
 
What is a major ne...
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Biology 1000 – Principles of Biology ( BioS 115 Core II: Genetics) Exam Study Guide Questions With Answers.
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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...
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Biology 1000 – Principles of Biology ( BioS 115 Core II: Genetics) Exam Study Guide 2024/2025
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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...
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BIO 1A03 TEST 2 VERIFIED QUESTIONS AND ANSWERS 2023
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The lacZand lacY genes are transcribed when 
 
a) lactose is absent and glucose levels are high. 
b)lactose is present and glucose levels are low. 
c)lactose is present, regardless of the level of glucose in the cell. 
d) glucose levels are low, regardless of the level of lactose in the cell. - b) 
 
The CRP-cAMP complex binds the lactose operon when 
 
a) glucose levels and cAMP levels are low. 
b) glucose levels are high and cAMP levels are low. 
c) glucose levels and cAMP levels are high. 
d...
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SFSU Biology 230 Final Exam with complete solutions
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SFSU Biology 230 Final Exam with complete solutions 
What are the two components of the proton-motive force? 
a. pH gradient and equilibrium 
b. pH gradient and voltage 
c. voltage and ATP 
d. voltage and lipid-soluble agents - ️️ b. pH gradient and voltage 
Which molecule is responsible for unwinding DNA supercoils before replication in E. 
coli? 
a. DNA helicase 
b. DNA ligase 
c. DNA polymerase III 
d. Gyrase 
e. Topoisomerase I/II - ️️ a. DNA helicase 
What is the likely cause of an ...
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OpenStax Microbiology test bank Chapter 5,6,7, and mastering chapter 8
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OpenStax Microbiology test bank Chapter 5,6,7, and mastering chapter 8 
1) Which of the following compounds is NOT an enzyme? 
A) dehydrogenase 
B) cellulase 
C) coenzyme A 
D) β-galactosidase 
E) sucrase 
2) Figure 5.1 
Which compound is being reduced in the reaction shown in Figure 5.1? 
A) isocitric acid and α-ketoglutaric acid 
B) α-ketoglutaric acid and NAD+ 
C) NAD+ 
D) NADH 
E) NADH and isocitric acid 
3) Which organism is NOT correctly matched to its energy source? 
A) photoheterotrop...
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CWEA Grade I Laboratory Analyst, questions and answers 2023
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CWEA Grade I Laboratory Analyst, questions and answers 2023 
Chloride 
- Major anion found in many natural waters 
- Can impart salty taste in H2O 
 
 
 
What increases concentration of chloride in wastewater 
Chloride in human diet and softeners flushed into sanitary sewer system 
 
 
 
2 most prevalent methods of measuring chloride 
argentometric and mercuric nitrate 
 
 
 
Argentometric 
Titration of sample with standard solution of silver nitrate (AgNO3) 
- Indicator: Chromate ions (CrO4) 
-...
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Biology 3221A Biochemistry Final Exam Q&A- Rush University
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Biology 3221A Biochemistry Final Exam Q&A- Rush University 
Which of the following single-base DNA gene coding changes is least 
likely to significantly affect the function of resulting protein? (Harper pages 
361-363) 
A. Missence mutation resulting to histidine-to-glutamic acid change 
B. Silent mutations in the third codon base 
C. Frameshift mutation 
D. Nonsense mutation 
2. Which of the following is a property of enhancer elements? (Harper pages 
384-385) 
A. They do not work located downs...
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iology 1000 – Principles of Biology ( BioS 115 Core II: Genetics) Exam Study Guide
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iology 1000 – Principles of Biology ( BioS 115 Core II: Genetics) Exam Study Guide. 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 
Expressi...
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