12 Questions
What is the primary focus of genetics?
Understanding how genes are replicated
What are genes composed of?
Nucleotides
How is the genome defined?
The entire genetic information in a cell including chromosomes and plasmids
What is the function of nucleoids in a bacterial cell?
To maintain DNA supercoiling
How is DNA accessibility for replication or transcription achieved in E. coli cells?
By making nicks in single strands to relax supercoiling
Based on the Genetic Map of E. coli Chromosome, what shape is usually associated with the bacterial chromosome?
Circular
What does the distance between genes in e.coli indicate?
The level of gene clustering in the genome
Why does every gene in e.coli require a promoter for transcription?
To initiate the synthesis of a complementary mRNA strand
In e.coli, what is the main reason for the absence of introns in the genome?
To make every part of the genome useful
What role does a promoter play in gene expression?
Binding RNA polymerase for transcription initiation
Why do genes that are closer together in e.coli take less time to transfer during conjugation?
Due to the presence of short tandem repeats (STR)
What determines the direction of transcription in prokaryotes?
Promoter sequence on DNA
Learn about genes, chromosomes, genome, and nucleoid in genetics. Understand how genes carry information, how chromosomes contain hereditary information, and the concept of a genome encompassing all genetic information in a cell.
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