Week 9
True or False: Different cell types have different gene contents.
What is False?
Cells express different genes based on their exposure to each factor
What is positional information?
The main building block of lipid bilayers
What is phospholipids?
Protein that transports cargo in unidirectionally
What is a uniport?
A coordinately transcribed gene set controlled by a single promoter
What is an operon?
This process represses transcription of genes.
What is Methylation?
Single cell consisting of several structurally and functionally distinct parts, but with a continuous plasma membrane
What is spermatozoa?
The 3 main families of ATP-driven pumps
What is P-type pumps, ABC transporters and V-type pumps?
Divide the genome into independently regulated domains
What is insulators?
Holds the 5' end of miRNA stable for optimal base pairing in RISC complex
What is the function of Argonaute?
What protein forms cylinders to avoid having energetically disfavored edges in the membrane.
What are Beta Barrel Proteins?
Channels that are located within all cells that have a role in making the plasma membrane more permeable for K+ ions than other ions
What are potassium leak channels?
This process allows for regulator binding by loosening the surrounding DNA on the nucleosome
What is nucleosome "breathing"?
These Piwi-bound small RNAs form a "hit list" to silence germ-line transposons.
What is piRNAs?
Allow for membrane proteins to be solubilized but maintain proper folding
What are mild, nonionic detergents?
What neurotransmitters open nonselective cation channels to depolarize the postsynaptic membrane towards the threshold for firing an action potential?
What are excitatory Neurotransmitters?