Answer: The sodium-potassium pump.Explanation:
The concentration of sodium and potassium inside and outside the muscle cells are important in the regulation of contraction. These concentrations differ when a muscle is relaxing or contracting.
<span><span>Contraction: potassium concentrations are higher outside the cell than inside the cell.</span><span>Relaxation: the potassium concentrations are higher inside the cell than outside the cell.</span></span>
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Answer:
The correct answer is- Transduction
Explanation:
There are three processes by which genetic material of one bacteria can pass to the other bacteria and these processes are transformation, conjugation, and transduction.
In transduction bacteriophage( virus that infects bacteria) is responsible for the transfer of genetic material of one bacteria to another bacteria. When a virus infects one bacteria its genetic material divides with the bacterial DNA and sometime during making new phage particles part of bacteria DNA gets packed in viral capsid.
When that virus infects another bacteria the genetic material of other bacteria gets incorporated in its host genome and this process is called transduction.
Answer:
The correct answer is - C) pH paper + Phenol red.
Explanation:
Iodine is a reagent and indicator that is used to test confirm the presence of the starch in the sample by producing its characteristic blue-black color.
pH paper is an indicator that helps in telling about the pH level of a specific sample or solution by changing its color.
Biuret reagent is used to test for the presence of protein as it identifies peptide bonds in a solution.
Benedict's solution is an indicator that is used to confirm the presence of simple sugar in the solution or sample.
Phenol red solution is used as a pH scale to identifies the pH value of a sample or solution.
Sudan Iv is used to find the lipids and fats in the sample or solution.
Thus, the correct answer is - C) pH paper + Phenol red test for similar conditions.
Answer:
23, haploid
Explanation:
there are 23 chomrosomes in both a egg and sperm cell
this makes them haploid as they have a single set of unpaired chromosomes
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