Answer:
A 40 percent
Explanation:
If guanine is 10 percent this means that cytosine will also be 10.thats a total of 20 percent. We will then have 80 percent remaining for thymine and adenine. As we know adenine make a bond with thymine so 80 divide by 2 is 40 percent for each
Answer:
The membrane potential of a nerve cell will depolarize if there is an increase in the positive ions inside the cell.
Explanation:
When nerves are in resting potential it is -70mV. In this stage interior of the cell is negatively charged and outside is more positive. When depolarization occurs the inside cell becomes positive.
This is due to the rush of sodium ions into the cell by voltage-gated channels. Now the inside charge is more positive and the chloride ions move out of the cell. Thus outside becomes more negative.
After some time of depolarization stage, potassium ions move out of the cell making the nerve cell again negative. Now the depolarized stage becomes repolarized by the entry of potassium ions.
During depolarization, the potential of the cell is -55mV. When repolarization occurs, it is again -70mV. But the potassium channels are open and some of the potassium ions move out of the cell making the inside environment more negative. This is known as hyperpolarization condition.
This hyperpolarization remains for a short period where action potential can't occur. This period is called the refractory period. Again potassium ions enter into the cell. This results in the resting potential of the neuron again.
Breaker waves are waves that reach a specific amplitude that causes certain energy transformations. They are formed due to the rise of the ocean floor.
<h3>What are breaker waves and their formation?</h3>
A breaker is a type of wave that is formed due to the rise of the ocean floor or the bed in the oceanic zones. They reach the shores towards the shallow water because of the water breaking or collapsing.
The breaker waves have increased heights when the water depth and wavelength decreases. It is called a breaker because it breaks something.
Therefore, option A. the rise of the ocean floor cause the formation of the breaker wave.
Learn more about breaker wave here:
brainly.com/question/17420623
These cells are also characterized by having no nucleus, being devoid of organelles. So no organelles are missing from trevor's red cells.
<h3>What is Hereditary elliptocytosis?</h3>
Hereditary spherocytosis and elliptocytosis are congenital disorders of the erythrocyte membranes that cause mild hemolytic anemia. Symptoms, usually milder in hereditary elliptocytosis, include varying degrees of
- Anemia
- Jaundice
- and Splenomegaly.
Diagnosis requires demonstration of increased osmotic fragility of erythrocytes and a negative direct antiglobulin test. Rarely, patients < 45 years of age with symptomatic disease require splenectomy.
With this information, we can conclude that the red cells of Trevor do not have organelles, a fact that is not altered by their condition (Hereditary elliptocytosis).
Learn more about Erythrocyte in brainly.com/question/2908647
