An ion channel in the membrane of neurons which <u>open or close</u> in response to a neurotransmitter that binds to its receptor is called:  ligand-gated channel.
<h3>What is an 
action potential?</h3>
An action potential can be defined as a sudden, fast change in electrical (voltage) potential with respect to the transmission of an impulse to a receptor, across a cellular membrane such as:
<h3>What is a neuron?</h3>
A neuron is a nerve cell that is saddled with the responsibility of transmitting electrical impulses down an axon across a cellular membrane of the body of a living organism through an action potential.
In Science, a ligand-gated channel is a type of ion channel in the membrane of neurons which <u>open or close</u> in response to a neurotransmitter that binds to its receptor.
Read more on neurons here: brainly.com/question/13076783
 
        
             
        
        
        
Answer:
25%
Explanation:
T = Hitchhiker's thumb
t = straight thumb
B = Brown eyes
b = blue eyes
The man's genotype is ttBb
The woman's genotype is Ttbb
Make a dihybrid punnett square to find the possible genotypes of the offspring
ttbb is straight thumb and blue eyes. There are 4 out of 16 genotypes with this phenotype so:
Divide 4 with 16 and multiply by 100 to get the percentage of offspring with that phenotype
4 ÷ 16 = 0.25
0.25 × 100 = 25%
 
        
             
        
        
        
<em>G1, S and G2 phases are all cumulatively referred to as interphase involving the growth of a cell and the replication of its DNA. Initially in G1 phase, the cell grows physically and increases the volume of both protein and organelles. In S phase, the cell copies its DNA to produce two sister chromatids and replicates its nucleosomes. Finally, G2 phase involves further cell growth and organisation of cellular contents. The S phase of a cell cycle occurs during interphase, before mitosis or meiosis, and is responsible for the synthesis or replication of DNA. In this way, the genetic material of a cell is doubled before it enters mitosis or meiosis, allowing there to be enough DNA to be split into daughter cells. The S phase only begins when the cell has passed the G1 checkpoint and has grown enough to contain double the DNA. S phase is halted by a protein called p16 until this happens.</em>
 
        
                    
             
        
        
        
Huh what that’s not an question
        
             
        
        
        
Answer:
3
Explanation:
i looked it up i hope that helped!