The Action potential is the electrical signal that typically moves from the cell body down the axon to the axon terminals.
An Axon terminal may be defined as a region that is typically found at the end of a neuron after the termination of axons. This region is a small, spherical, bouton-like structure. It is also known as terminal boutons.
An action potential is a rapid and transitory alteration in the resting membrane potential. This potential significantly involves the alteration in the electrical potential which is associated with the passage of an impulse.
Such types of potentials are only stimulated by neurons and some muscle cells. This property of action potential is also known as excitability.
Therefore, the electrical signal that typically moves from the cell body down the axon to the axon terminals is known as the action potential.
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Answer: Action potential
Explanation:
Action potential is the electrical signal that typically moves from the cell body down the axon to the axon terminals. There are other terms to refer to this, and those are impulse or spike. This is so because action potential is created when "the membrane potential of a specific axon location rapidly rises and falls," according to its definition.
their appearance and functions are different.
This is because the liver cell
(1) contains different genes than the muscle cell
(2) expresses different genes than the muscle
cell
(3) destroys the muscle cell genes it contains
(4) lacks the genes found in muscle cells
Answer: The correct answer is-
(2) expresses different genes than the muscle cell.
Liver cell and muscle cell in human are developed from the same single cell but perform different functions that is they are specialized to perform particular function.
It is because there is differential expression of genes in these cells. In other words, specific genes are turned on to perform specific functions and other genes are turned off.
Gene expression means transcription ( formation of mRNA from DNA) and translation ( formation of protein from mRNA) of gene ( a DNA segment, which codes for particular protein) so as to form a specific protein or polypeptide.
The protein thus produced, provides specific function to the cell.
Thus, different genes are expressed in specialized cells ( such as muscle and liver cell), which enables them to perform specific functions.
B. Mitochondrial DNA is inherited through the father.
C. Mitochondrial DNA can be traced for generations.
D. Mitochondrial DNA requires large amounts for testing.
The correct answer is C
Answer:
The response for this question: How is it that a code consisting of only four letters (A, T, G, C) can contain instructions for all the different parts of an organism and accout for the diversity of organisms on this planet, would be: These letters, known as nucleotide bases, when paired together, can each code for a wide variety of amino acids, the building blocks of proteins. It is proteins that carry out the instructions that are written in the genetic code and each amino acid in a protein can be coded for by more than one of the organized nucleotide pairings.
Therefore, during the process of translation, meaning DNA-RNA-protein, although the nucleotide pairings are pretty basic and limited, each of them, when interpreted by ribosomes and their accompanying tRNA, will call in different types of amino acids and build different types of proteins, depending on the need, the purpose and the location where these proteins will have to act.
This is how from a limited group of DNA nucleotide pairings, it is possible to have so many differences not only within the same organism, but among all living organisms that exist.
Answer: As the P and S waves travel out from an earthquake the P waves get progressively farther ahead of the S waves. Therefore, the farther a seismic recording station is from the earthquake epicenter the greater will be the difference in time of arrival between the P and S wave.
Species A: CAC GTG GAC AGA GGA CAC CTC
Species B: CAT GTG GAC AGA GGA CAC CTC
Species C: CAC GTA GAC TGA GGA CTT CTC
Answer:
c
Explanation:
Answer:
Explanation:
The DNA is composed of a sequence of nucleotides, each having a different base (adenine, thymine, guanine, cytosine). This DNA molecule is transcribed into RNA, which has a complementary sequence. Then the RNA will have a base sequence according to the information encoded in the DNA.
A codon consists of three bases together, which code for an amino acid.So each three-letter sequence of RNA corresponds to a specific amino acid, a start or stop codon.
AUG is the codon for methionine, and it is also the start codon, which indicates when the protein synthesis must begin. While UGA, UAA, and UAG are stop codons. Start and stop codons are important because then translation is not started or finished. During protein synthesis, stop codons cause the release of the protein from the ribosome.
So, that the protein synthesis begins and is carried out respecting the reading frame so that the appropriate protein is produced, and that it stops being synthesized when necessary, it is important to have a start and stop codon.