Question

Four cells in a melon fruit divides to give rise to 2000 cells in 1 hour. And one cell in a cherry fruit divided and there were 500 cells after 1 hour. Which of the following statements is true?

• A. Melon has a higher relative growth rate than cherry
• B. Cherry has a higher relative growth rate than melon
• C. Growth rate cannot be compared as they are different fruits
• D. Both melon and cherry have the same relative growth rate

Answer 1

The correct option is D Both melon and cherry have the same relative growth rate

Relative growth is the growth of the organism per unit time, per unit initial parameter measured.

4 cells gave rise to 2000 cells in melon fruit. It means that 1 cell gave rise to 2000/4= 500 cells. This means that in melon fruit, 1 cell gave rise to 500 cells in an hour.
Also, in the cherry fruit, 1 cell gave rise to 500 cells in an hour. The rate of division of cells in both the fruits is the same when we take the initial parameter of 1 cell into account. Here, we can say that the relative growth rate of both the fruits is the same.