Bunuel
12 Days of Christmas 🎅 GMAT Competition with Lots of Questions & FunIn a region known for its unique flora, scientists have discovered a new plant species. This species shares characteristics with both Verdantleaf, which is native to the eastern part of the region, and Sunbloom, which is predominant in the western part. It is uncertain whether this new plant species evolved independently in the area where it was found or whether it is a hybrid resulting from the intermingling of Verdantleaf and Sunbloom.
Which of the following, if found in the area where the new plant species was discovered, would best help in determining whether the plant is an independent species or a hybrid of Verdantleaf and Sunbloom?
(A) Pollen grains that have a genetic makeup similar to that of Verdantleaf
(B) A geographic map showing the overlapping habitats of Verdantleaf and Sunbloom
(C) Soil samples containing nutrients known to be favorable for the growth of both Verdantleaf and Sunbloom
(D) Fossilized remains of an ancestral plant that shares traits with both Verdantleaf and Sunbloom
(E) Seeds of the new plant species that show a genetic composition distinct from both Verdantleaf and Sunbloom
GMAT Club's Official Explanation:
E) Seeds of the new plant species that show a genetic composition distinct from both Verdantleaf and Sunbloom.
- This choice provides the most direct evidence to determine the nature of the new plant species. If the seeds of the new species have a genetic composition that is distinct from both Verdantleaf and Sunbloom, it strongly suggests that the new species is not a hybrid but rather an independent species. This directly addresses the question of whether the new plant is an independent evolution or a hybrid.
The other options, while relevant, do not provide as conclusive evidence as (E):
A) Pollen grains that have a genetic makeup similar to that of Verdantleaf.
- Similarity to Verdantleaf could suggest a relationship, but it would not conclusively determine whether the new plant is a hybrid or an independent species.
B) A geographic map showing the overlapping habitats of Verdantleaf and Sunbloom.
- While this shows potential for intermingling, it does not provide direct genetic evidence about the nature of the new species.
C) Soil samples containing nutrients known to be favorable for the growth of both Verdantleaf and Sunbloom.
- This option addresses environmental conditions but does not directly help in determining the genetic origins of the new plant species.
D) Fossilized remains of an ancestral plant that shares traits with both Verdantleaf and Sunbloom.
- This could provide historical context but does not offer conclusive evidence about the genetic status of the new plant in comparison to Verdantleaf and Sunbloom.
Therefore, (E) is the best answer as it directly addresses the genetic distinction of the new plant species, providing the most conclusive evidence regarding its independent status or its nature as a hybrid.