E hypothetical genes are arranged on a chromosome in the following order: G--H--I--J--K. Which two genes are most likely to have a crossover occur between them?

The correct answer is - G and K.

Explanation:

Crossing over is the process that causes recombination by the genetic exchange in the nonsister chromatids of a homologous chromosome during the meiotic division in the cell.

The chances of the cross over in between two genes are directly proportional to the distance present in between the genes. The farthest the genes the chances of the crossover are more in these. So, there is in question the provided question has a chromosome with the greatest distance between G and K chromosome.

Thus, the correct answer is - G and K.

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it has to be understood that the sea water contains a huge amount of sodium and chlorine ions and if they enter the cell of the atlantic cod fish, the cell will shrivel and the fish will die. to avoid such a condition, the fish uses active transport for the purpose of removing the ions against the gradient.

explanation:

the atlantic cod is not a maritime osmoconformer. its native application of salts is less than that of the seawater it lives in. it is continually falling water from the gills to the ocean via osmosis.

countering that, the fish is going to be swallowing seawater. but since its internal collection of salts is lower than seawater, the fish will want to go free of excess salt, and since that's going upon a gradient, then active transport, requiring energy, must be used to pump out the salt. much marine fish use the organs to filter out the salt and these fish discharge very straight urine.