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During initial transcription, the polymerase remains stationary on the promoter, unwinds downstream DNA, and pulls that DNA into itself

#Unit 3. Fundamental Processes #Eukaryotic transcription factors and machinery #Part B Pointers
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TLS Online TPP Program

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#Unit 8. Inheritance Biology

Advantages of using bacteria and viruses for genetic studies

Reproduction is rapid. 
Many progeny are produced. 
The haploid genome allows all mutations to be expressed directly. 
Asexual reproduction simplifies the isolation of genetically pure strains. 
Growth in the laboratory is easy and requires little space. 
Genomes are small. 
Techniques are available for isolating and manipulating their genes. 
They can be genetically engineered to produce substances of commercial value. 

TLS Online TPP Program

#Id: 6715

#Unit 8. Inheritance Biology

Wild-type (Prototrophic) bacteria can use these simple ingredients to synthesize all the compounds that they need for growth and reproduction.

auxotroph lack one or more enzymes necessary for metabolizing nutrients or synthesizing essential molecules

TLS Online TPP Program

#Id: 6716

#Unit 8. Inheritance Biology



 

TLS Online TPP Program

#Id: 6717

#Unit 8. Inheritance Biology

Replica plating method - Isolation of auxotroph



TLS Online TPP Program

#Id: 6718

#Unit 8. Inheritance Biology


TLS Online TPP Program

#Id: 6719

#Unit 8. Inheritance Biology


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