8. If you measured the shell thickness of all offspring from one snail paior bef

Question

8. If you measured the shell thickness of all offspring from one snail paior before crabs ate any offspring, how would the average shell thickness of the offspring compare to that of the parents?

a. Offspring shells would be thinner, on average, than the parents’ shells.

b. Offspring shells would be the same thickness, on average, as the parents’ shells.

c. Offspring shells would be mutated toward thicker shells compared to the parents’ shells.

d. Only parents with thick shells will produce offspring, so offspring will have thicker shells on average than their parents.

Explanation / Answer

If you measured the shell thickness of all offspring from one snail paior before crabs ate any offspring, then Offspring shells would be the same thickness, on average, as the parents’ shells because at this stage no offspring has undergone the adverse condition of being eaten up by the crab.

However if we will measure the thickness of the offspring after the scenerio that crabs eat the offspring then, offspring shells would be mutated toward thicker shells compared to the parents’ shells is the correct answer

Reason: as it is given that crabs ate the snail offsring, so it is genetic law of inheritence of acquired character, so the snail offspring will be mutated in order to get protected from being eaten up by the crab. This tendency will be transferred to their offspring as well.

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