The gate control theory of pain states that the experience of pain is dependent on the complex interaction of the central and the peripheral nervous system. This theory was given by Ronald Melzack and Patrick Wall.
Usually, when a person experiences pain, the neurons transmits the message from the area of damage along the peripheral nervous system to the spinal cord and the brain. The gate control theory suggests that the neurons encounter the 'nerve gates' while transmitting the pain messages in the spinal cord. These opening and closing of these gates is dependent on the multiple factors.
The basket cells are the multipolar, inhibitory interneurons . Endorphins are the neuropeptide and the peptide hormones, which are secreted by the central nervous system and the pituitary gland. These structures have no relation with the transmission of the pain.
The hyperpolarization of the neurons by the opiate receptors resulting in the release of the substance P, which is a neurotransmitter involved with pain.
Hence, the correct answer is 'by releasing substance P'.
If the dna triplets is atg-cgt, the trna anticodons are Uac-gca.
<h3>Are codons triplets of tRNA?</h3>
The triplet of bases that is complementary to a codon is called an anti-codon the triplet in the mRNA is called the codon and the triplet in the tRNA is called the anti-codon.
Thus, option "D" is correct.
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Answer:
The species that will be most similar to humans will be
1. rhesus
2. pigeon
3. fruit fly
Explanation:
Evolution can be described as the process in which different organism evolve from common ancestors over a long period of time. Evolutionary studies show that some organisms have more shared characteristics as compared with other organisms. These organisms with common characteristics are believed to be closer to one another and evolved from the same ancestors.
In the above question, as there is only one difference between the cytochrome c of humans and rhesus, hence rhesus is the closest to humans. Pigeons has lesser number of differences than fruit fly, hence it is second on the list. Fruit fly has the maximum differences hence it is placed last.
Answer: directional selection, disruptive selection and stabilizing selection
Explanation:
Natural selection is when organisms adapt to the environment and pass down these adaptations to their offspring when they breed
Option B i.e A Divide is the correct answer.
The Rocky mountains are also called a Divide or Continental Divide of Americas because these mountains separate river system flow in the pacific ocean and the river system which flows in the Atlantic ocean. The Continental divide is also called as the Great Divide.
