TLS Online TPP Program

#Id: 2455


Binding of the repressor to the operator sequence blocks binding of RNA polymerase and so inhibits transcription.




#Unit 3. Fundamental Processes #Transcription elongation and termination #Part B Pointers
More Pointers
TLS Online TPP Program

#Id: 2038

#Unit 8. Inheritance Biology

Prophage - Phage genome that is integrated into a bacterial chromosome.

TLS Online TPP Program

#Id: 2039

#Unit 8. Inheritance Biology

Temperate phage Bacteriophage that can undergo the lysogenic cycle, in which the phage DNA integrates into the bacterial chromosome and remains in an inactive state.

TLS Online TPP Program

#Id: 2040

#Unit 8. Inheritance Biology

Bacterial Defense -
a. Secrete polysaccharide coats
b. Prevent viruses from injecting their nucleic acids
c. Restriction endonucleases
d. CRISPR- Cas systems

TLS Online TPP Program

#Id: 6714

#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