Chemical Signalling
Neural Signalling
Cell and Nuclear Division
Gene Expression
Random
100
Define ligand.
What is a signalling molecule that binds to a specific receptor?
100
Lipid based cover that speeds up action potential transmision
What is myelin sheath?
100
Proteins that regulate the cell cycle.
What are cyclins?
100
This molecule is transcribed from DNA and translated into protein.
What is mRNA?
100
First Pokémon caught by Ash Ketchum
What is Caterpie?
200
Type of molecule released by bacteria into their extracellular space, which when reaches a threshold of concentration, can alter behaviour in a phenomenon called quorum sensing?
What is an autoinducer?
200
Spaces in the neuron axon that permit ion exchange.
What are the nodes of Ranvier?
200
Stage of cell division in which "crossing over" happens?
What is prophase I of meiosis?
200
These sequences in DNA act as binding sites for RNA polymerase.
What are promoters?
200
Only continent present in all four hemispheres
What is Africa?
300
Example of a hormone that has an intracellular receptor.
What are estrogen/estradiol/testosterone or progesterone?
300
Resting potential of a neuron-
What is negative 70 mV?
300
Stage of cell division in which sister chromatids are pulled by spindle fibres toward opposite poles of the cytoplasm.
What is anaphase II?
300
These non-coding regions are spliced out of pre-mRNA during RNA processing.
What are introns?
300
Mexican national flower
What is the Dalia?
400
This type of receptor is activated by binding to insulin.
What is a tyrosin-kinase receptor?
400
Type of ion channel activated in postsynaptic neuron membranes by excitatory impulses.
What are ligand activated sodium channel?
400
Number of chromosomes in each daughter cell at the end of telophase and cytokinesis in mitosis?
What are 46 chromosomes in each diploid daughter cell?
400
This regulatory mechanism involves the addition of methyl groups to DNA, affecting gene expression without changing the sequence.
What is methylation?
400
International Earth day.
What is april 22nd?
500
One example of positive feedback regulation in the human body.
What are the blood coagulation amplification or the oxytocin contraction regulation during labor?
500
Stage of the action potential caused by a cellular efflux of K+.
What is repolarization?
500
Number of daughter cells and chromosomes present in each of them at the end of telophase II in meiosis.
What are 4 daughter cells with 23 chromosomes each.
500
Effect of acetylation on histone tails and gene expression.
What is the fact that Acetylation decreases the overall charge of the histone protein and reduces the electrostatic attraction between the histone and DNA. As a result, DNA becomes less tightly wrapped around histone proteins. This makes it easier for RNA polymerase and other molecules involved in transcription to access the DNA, usually resulting in increased gene expression?
500
Zodiac sign for Dr.Js next birthday
What is Leo?