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BIOD 210/ BIOD210 Module 4: (Latest 2025/ 2026 Update) Genetics | Questions & Answers| Grade A| 100% Correct (Verified Solutions)- Portage Learning

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BIOD 210/ BIOD210 Module 4: (Latest 2025/ 2026 Update) Genetics | Questions & Answers| Grade A| 100% Correct (Verified Solutions)- Portage Learning QUESTION A bacterium that can grow well on minimal medium is an example of a ____ Answer: Prototroph QUESTION Match the terms Answer: Enzyme: Acts as a catalyst for a biochemical reaction Operon: a cluster of genes with a single promoter Gratuitous inducer: Activates genes but not be metabolized by the encoded enzymes Structural gene: gene not involved in the biochemical regulation Prophage: a virus that integrates its genome into the DNA of a bacterial genome QUESTION A gene that is expressed all of the time regardless of conditions is called Answer: Constitutive QUESTION Which of these is gratuitous inducer of the lac operon? A. IPTG B. EDTA C. Magnesium sulfate D. Tryoptophan Answer: A. IPTG QUESTION True or False: A temperate bacteriophage is capable of either lysis or acting as a prophage within a bacterial cell. Answer: True QUESTION Match the structural gene of the lac operon with its protein product and its function

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BIODl 210/l BIOD210l Modulel 4:l (Latestl
2025/l 2026l Update)l Geneticsl |l Questionsl
&l Answers|l Gradel A|l 100%l Correctl
(Verifiedl Solutions)-l Portagel Learning

Q:l Al bacteriuml thatl canl growl welll onl minimall mediuml isl anl examplel
ofl al ____


Answer:
l Prototroph




Q:l Matchl thel terms

Answer:
l Enzyme:l Actsl asl al catalystl forl al biochemicall reaction
Operon:l al clusterl ofl genesl withl al singlel promoter
Gratuitousl inducer:l Activatesl genesl butl notl bel metabolizedl byl thel encodedl
enzymes
Structurall gene:l genel notl involvedl inl thel biochemicall regulation
Prophage:l al virusl thatl integratesl itsl genomel intol thel DNAl ofl al bacteriall
genome




Q:l Al genel thatl isl expressedl alll ofl thel timel regardlessl ofl conditionsl isl
called

, Answer:
l Constitutive




Q:l Whichl ofl thesel isl gratuitousl inducerl ofl thel lacl operon?

A.l IPTG
B.l EDTA
C.l Magnesiuml sulfate
D.l Tryoptophan


Answer:
l A.l IPTG




Q:l Truel orl False:

Al temperatel bacteriophagel isl capablel ofl eitherl lysisl orl actingl asl al
prophagel withinl al bacteriall cell.


Answer:
l True




Q:l Matchl thel structurall genel ofl thel lacl operonl withl itsl proteinl productl
andl itsl function


Answer:
l A.l lacZ,l b-galactosidase,l Convertsl lactosel intol glucosel andl galactose

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