Mutations can lead to changes in the structure of an encoded protein or to a decrease or complete loss in its expression. Because a change in the DNA sequence affects all copies of the encoded protein, mutations can be particularly damaging to a cell or organism.

3 0

2 years ago

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If a plant cell is placed in solution and the cell shrivels up what type of solution was it placed in

IgorLugansk [536]

The plant cell was placed in a hypertonic solution. Due to its higher concentration of solutes and a net movement of water outside a hypertonic solution causes the cell to shrink. In other words, when a plant cell is placed in hypertonic solution the water from the cell will be forced out of the cell in an attempt to balance itself. This is known as plasmolysis.

8 0

3 years ago

german

Given what we know about nutrition, we can confirm that the runner's meal would have to contain 30 grams of protein.

The runner in question wishes to complete a two-hour run while expending 4kcal or calories per minute, for a total of 480kcal. Furthermore, the runner wishes for only 25% (120kcal) of this energy to come from a source of protein.

Since every gram of protein adds 4 calories of energy to the meal, and we have to account for 120 calories, the runner will have to consume 30 grams of protein to achieve the desired results.

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