development articles
What is the process where a simple, unspecialized cell develops into a distinct, specialized cell type called?
What fundamental process drives cellular differentiation across different cell types sharing the same DNA?
At which initial step does the precise control of gene expression primarily occur?
What specialized proteins interact directly with DNA sequences like enhancers or promoters to regulate gene activity?
What external molecule often initiates the differentiation program by binding to a cell membrane receptor?
What term describes heritable changes in gene expression that occur without altering the underlying DNA sequence?
What is the typical consequence of heavy DNA methylation on targeted genes within a specialized cell lineage?
What analogy is used in the text to describe how Transcription Factors select which gene sets will be expressed?
According to the text, what is required to maintain the stability of a highly specialized differentiated state?
What process involves a cell progressively narrowing the range of possible cell types it can become during development?
Besides bacteria, which other types of microbes can develop antimicrobial resistance?
What are the two primary genetic mechanisms by which pathogens develop drug resistance?
Which method of gene transfer involves bacteria physically connecting via a pilus to share DNA?
What biochemical strategy involves pathogens using specialized membrane proteins to actively expel antimicrobial agents?
What term describes the process where antimicrobial use creates an environment favoring the survival and dominance of resistant strains?
In human medicine, what common misuse accelerates resistance development?
What happens if a patient stops taking an antibiotic course prematurely?
In agriculture, what is a common, non-treatment related use of antimicrobials that drives resistance?
Which pathway contributes to resistance by creating a vast, low-level selection pressure in soil and water systems?
Why does pathogen evolution often outpace the discovery of new antibiotics?
What is a crucial first step in personal antimicrobial stewardship when visiting a healthcare provider?
What is the signature visual characteristic of the cyanotype process invented by Herschel?
In what year was Sir John Herschel's cyanotype process invented?
What chemical agent did Herschel discover was crucial for *fixing* silver-based images, stopping further light sensitivity?
Which term, related to photography, was coined by Sir John Herschel?
What two chemical solutions are required to coat a substrate for the cyanotype process?
Who was the first contemporary to extensively document subjects using Herschel's cyanotype process, starting around 1843 or 1844?
What specific subject matter did Anna Atkins use the cyanotype to illustrate in her publication?
What is the intensely colored, stable pigment formed when ferric salt is reduced and reacts with potassium ferricyanide?
What was John Herschel's primary scientific career that influenced his approach to optics and light sensitivity in chemistry?