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stepan [7]
2 years ago
14

In the Hardy-Weinberg principle, the actual number values of p and q will not change if five specific conditions are being met.

This indicates
Question 1 options:

evolution is occurring only because of mutations


evolution is not occuring


evolution is occurring rapidly because of climate change


evolution is occurring because of natural selection
Biology
1 answer:
JulsSmile [24]2 years ago
5 0

In the Hardy-Weinberg principle, the values of p and q will not change if evolution is not occurring.

<h3>What is the Hardy-Weinberg principle?</h3>

The Hardy-Weinberg principle is a model used in population genetics to estimate genotypic and allele frequencies in a population.

The Hardy-Weinberg principle states that allele and genotypic frequencies remain constant in absence of evolutionary forces.

These evolutionary forces include nonrandom mating, gene drift, gene flow, mutation and natural selection.

Learn more about the Hardy-Weinberg principle here:

brainly.com/question/3406634

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Describe the role of the following in synaptic communication:______.
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Answer:

1- Ionotropic receptors form ionic channels that allow certain ions to pass through the plasma membrane, and metabotropic receptors, which are associated with G proteins and have a modulating action on synaptic transmission.

2-Neurons communicate with each other through neurotransmitters, which are the molecules responsible for sending signals from one neuron to the next neuron. Neuromodulators also enter into communication between nerve cells.

3-Rapid PPSE occurs when postsynaptic nicotinic receptors on dendrites and neuronal cell bodies are activated through acetylcholine, which causes membrane depolarization and allows the entry of Na and Ca ions.

Acetylcholine also allows the activation of postsynaptic muscarinic receptors, which leads to the slow excitatory postsynaptic potential. This occurs when the channels are Ca and Na open and the K channels are closed.

4-When the neurotransmitters are attached to their receptors, the opening of the ion channels can be opened. This leads to two types of postsynaptic potentials being generated: postsynaptic excitation potentials (PEPs), if the membrane potential is depolarized, and the postsynaptic potential inhibitors (PIPs), if the membrane potential is hyperpolarized.

Explanation:

1-The importance of studying neurotransmitter receptors is that most of the drugs of clinical importance, such as anesthetics, anticonvulsants, etc., are based on the mechanisms of action of these receptors

2-Neurotransmitters allow them to produce or not action potential, serves to activate postsynaptic receptors and are capable of opening ion channels. On the other hand, neuromodulators are responsible for regulating the activity of ion channels.

3-The fast PPSE reaches 15 milliseconds. The slow PPSE lasts approximately 1-2 minutes.

4-PEPs occur when the ionic channels of Na + or Ca2 + are opened, while PIPs when the channels  of K + or CI- are opened.

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