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Marat540 [252]
3 years ago
11

When Gregor Mendel crossed true breeding tall plants and true breeding short plants why was it impossible to observe segregation

Biology
1 answer:
jeka943 years ago
6 0
Alleles in the F1 must be Tt to have height variety in the F2.
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An action potential involves potassium ions moving ________ the cell and sodium ions moving ________ the cell.
Alecsey [184]

An action potential involves potassium ions moving <u>outside </u>the cell and sodium ions moving <u>inside </u>the cell.

<h3>how does it action potential work?</h3>

Neurons have a negative concentration gradient most of the time, meaning there are more positively charged ions outside than inside the cell. This regular state of a negative concentration gradient is called resting membrane potential. During the resting membrane potential there are:

  • more sodium ions (Na^+ ) outside than inside the neuron
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The concentration of ions isn’t static though! Ions are flowing in and out of the neuron constantly as the ions try to equalize their concentrations. The cell however maintains a fairly consistent negative concentration gradient (between -40 to -90 millivolts). How?

  • The neuron cell membrane is super permeable to potassium ions, and so lots of potassium leaks out of the neuron through potassium leakage channels (holes in the cell wall).
  • The neuron cell membrane is partially permeable to sodium ions, so sodium atoms slowly leak into the neuron through sodium leakage channels.
  • The cell wants to maintain a negative resting membrane potential, so it has a pump that pumps potassium back into the cell and pumps sodium out of the cell at the same time.

Learn more about action potential

brainly.com/question/6705448

#SPJ4

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1 year ago
Kory has abnormally high levels of cytotoxic T-cells circulating in his blood. What is the most likely cause of this condition?
kobusy [5.1K]

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Explanation:

i think that this is right answer

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I think it is C

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I think it's c; a mountain. Am I correct?
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an agent, such as radiation or a chemical substance, which causes genetic mutation.

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