The leaves of a maple tree vary in size depending on the location of the leaves on the tree.Those growing at the outer region of the tree tend to be smaller than those growing closer to the trunk of the tree.This allows leaves that are growing in the shade to have a larger surface area.This show that genes have the ability to
A) Respond to environmental factors
B) Show two different genetic variations
C) Be turned off if they are not needed
D) Choose whether or not they are expressed
E) Mutated by exposure to sunlight

Question

Quizplus · Accepted Answer

Phenotypic variations allow organisms to respond to conditions in the environment. Leaves that receive less sunlight require a larger surface are in order to carry out photosynthesis efficiently. Those that are exposed to full sunlight do not need that same increased surface area. The plant is not showing two different genetic variations of leaves. The genes are not being turned on or off due to their position on the tree and they are not choosing to be expressed or not. Sunlight is not causing them to mutate.Bloom's

The Leaves of a Maple Tree Vary in Size Depending