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ollegr [7]
3 years ago
6

In what ways are autorhythmic fibers similar to and different from contractile fibers?

Biology
1 answer:
Leto [7]3 years ago
5 0
I think Autorhythmic fibers are fibers that are self excitable or on their own for example some cardiac muscle. They  repeatedly generate action potentials that trigger heart contractions.They continue to stimulate a heart to beat even when it is removed from the body. In comparison to contractile fibers, autorhythmic fibers are self excitable and do not require nervous system stimulation to trigger contractions. Contractile fibers have stable resting membrane potentials of -90mV, when a contractile fibers reaches threshold by action potential, the voltage gated fast sodium ions channels will open. 
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Answer:

The theory of evolution was proposed by Charles Darwin and was first formulated in his book, "Origin of Species" in 1859. It focuses on the changes in species and populations over time

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3 years ago
Why are aseptic procedures important in Microbiology laboratory health care industry?
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8 0
3 years ago
3. RNA from a chipmunk is compared to RNA from a worm. Both will contain the
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Both will contain the sugar ribose and the base uracil
4 0
3 years ago
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Ksivusya [100]

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7 0
3 years ago
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What amino acid is carried by tRNA with anticodon, GUA?
astra-53 [7]
Hi There! :)

<span>What amino acid is carried by tRNA with anticodon, GUA?

</span>The mRNA sequence that you have shown above has been given in triplets of bases. These triplets are called codons. Therefore the amino acid that tRNA will bring must be complementary to this hence called the anticodon. There is a rule. A always pairs with U (or T if it was a DNA strand) and C always pairs with G. 

<span>For the first two triplets I will do the anticodon sequence then you can finish off : GUA GCC ..... </span>

<span>Each codon or anticodon triplet codes for an amino acid. To find this out published tables are used. All the possible triplets will be on there. You will simply just have to read off the names of the amino acid stated next to it in that grid table. </span>
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3 years ago
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