Answer:
False.
Explanation:
Neurotransmitter release occurs from the nervous terminal or varicosities in the neuronal axon. When an action potential reaches the nervous terminal, the neurotransmitter is released by exocytose. The molecule binds to its receptor in the postsynaptic neuron, triggering an answer. As long as the signal molecule is in the synaptic space, it keeps linking to its receptor and causing a postsynaptic response. To stop this process the neurotransmitter must be taken out from the synaptic space. There are two mechanisms by which the neurotransmitter can be eliminated:
• Enzymatic degradation/deactivation: There are specific enzymes in the synaptic space, which are in charge of inactivating the neurotransmitter by breaking or degrading it. The enzyme acetylcholinesterase prevents ACh from continuing to stimulate contraction.
• Reuptake: Receptors located in the presynaptic membrane can capture de molecule to store it back in new vesicles for posterior use. These transporters are active transport proteins that easily recognize the neurotransmitter.
Answer:
25%
Explanation:
Based on Mendelian inheritance 4 offs-pings were produced,
XX haemophiliac first girl
XX carrier girl
XY HAEMOPHILIAC first boy
XY normal second boy
Since the father of the woman is haemophiliac, then she is a carrier fro haemophilia (although with normal vision) who inherited the allele of the the sex-linked X chromosomes from the father.
The main functions of a petal is to attract an insect with its pretty colors and give the insect a landing pad to collect to pollen
Well because it is not used to anything yet and a new area the outcome will most likely be a super SLOW growth if it grows at all
