Unit 1- Gene Expression Flashcards
What happens during gene expression?
Genes are transcribed and translated
How many genes in a cell are expressed?
Only a fraction
How is gene expression controlled?
By the regulation of transcription and translation
How is gene expression influenced?
By intracellular and extracellular environmental factors
Why are genes expressed?
To produce proteins
What does gene expression result in?
The phenotype of an individual human
What can we say about proteins?
They have a variety of structures and molecular shapes which allow a wide range of functions.
What are proteins formed from?
Polypeptides which are chains of amino acids
How are chains of amino acids held together?
Peptide bonds and folded in various ways