The organisms in a pond and the physical factors <span>influencing them best describe "an ecosystem" since this is a self-contained environment will multiple organisms. </span>
The mass of an atom is contained in the nucleus.
Explanation:
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A neuron has a resting potential of about -70 millivolts.
The resting membrane potential is stable potential that each neuron has at rest and it is determined:
• By concentration gradients of ions across the membrane
• by membrane permeability to each type of ion (potassium, sodium, calcium, and chloride ions).
Voltage of neuron membrane is actually a difference in electric potential between positive and negative electric charges on opposite sides of a plasma membrane (inside of the cell is more negative than the outside). So, we say that the membrane is polarized.
If the membrane potential becomes more positive than it is at the resting potential, it becomes depolarized. Otherwise, it is hyperpolarized.
Answer:
The codon 5'-UAC-3' can pair with the anticodon 3´- AUI-5´ or with the anticodon 3´- AUG-5´.
Explanation:
The wobble hypothesis explains that the same anticodon can interact with different codons that differ in their third base. This is, bases 3 from the 3´extreme and bases 2 from the middle in the anticodon recognize the first base from the 5´extreme and the second one from the middle in the codon, according to the Watson and Crick pairing rules: Adenine pairs with Thymine and Guanine pairs with Cytosine. But on the other hand, the first base from the anticodon 5´extreme is less selective and can stablish a pair with the third base from the codon 3´ extreme according to Watson and Crick model or might stablish a different pair. This is, Guanine can pair with uracil or cytosine in the codon. Uracil can pair with adenine or guanine in the codon. Hyoscine can pair with adenine, cytosine or uracil in the codon.
According to this, the codon 5'-UAC-3' can pair with the anticodon 3´- AUI-5´ or with the anticodon 3´- AUG-5´.
Codon 5´-UAC-3´
Anticodon 3´-AUI-5´ The first base from the anticodon 5´extrem (Hyoscine) establishes a pair with the third base from the codon 3´ extreme (Cytosine), according to the wobble hypothesis.
3´-AUG-5´ The first base from the anticodon 5´extrem (Guanine) establishes a pair with the third base from the codon 3´ extreme (Cytosine), according to the Watson and Crick model.
