Which experimental approach would be the most effective and easiest to clearly determine the evolutionary relationship between these 2 organisms? The 2 organisms are a starfish and snake.
A. Sequence the same gene in both species to compare their similarity.
B. Dissect specimens of both species to look for homologous structures.
C. Search fossil databases to locate a common ancestor.
D. Evaluate cells from both species to determine whether they contain enzymes.
Its not B its A. I just took this test and I'm looking At the answers.
(1 pt) Sequence the same gene in both species to compare their similarity.
Incorrect Answer (0 pts) Dissect specimens of both species to look for homologous structures.
Unselected answer (0 pts) Search fossil databases to locate a common ancestor.
Unselected answer (0 pts) Evaluate cells from both species to determine whether they contain enzymes.
yup its A
Ms:Sue is starting to get very questionable on her help because all of her work seems that she gets work wrong
To determine the evolutionary relationship between these two organisms—the starfish and snake—you can employ various experimental approaches. Here's an explanation of each option:
A. Sequence the same gene in both species to compare their similarity:
This approach entails obtaining the genetic material (DNA) from both the starfish and snake and then sequencing a specific gene in both organisms. By comparing the sequences, you can assess their similarity and infer their evolutionary relationship. This method is effective in determining the evolutionary relationship based on molecular evidence.
B. Dissect specimens of both species to look for homologous structures:
By dissecting specimens of the starfish and snake, you can closely examine their structures, organs, and tissues. If you find homologous structures—structures that have a common evolutionary origin—you can infer a closer evolutionary relationship between the two species. This approach depends on anatomical comparisons and can provide valuable information on the shared ancestry.
C. Search fossil databases to locate a common ancestor:
By searching fossil databases, you can look for evidence of a common ancestor for both the starfish and snake. Fossils can provide vital clues about the evolutionary history and help establish a link between the two organisms. However, this method may not be as effective in determining the specific evolutionary relationship between the starfish and snake.
D. Evaluate cells from both species to determine whether they contain enzymes:
Assessing the presence of specific enzymes in the cells of both the starfish and snake can provide insights into their biological functions and metabolic pathways. However, this approach alone may not be the most effective or comprehensive method to evaluate the evolutionary relationship between the two organisms.
In conclusion, while all these approaches have their merits, sequencing the same gene in both species to compare their similarity (Option A) would likely be the most effective and easiest method to clearly determine the evolutionary relationship between the starfish and snake, as it relies on the most direct genetic evidence.