Organism A has 70 moles % G+C,and organism B has 40 moles % G+C.Which of the following can be concluded from these data?
A)The two organisms are related.
B)The two organisms are unrelated.
C)The organisms make entirely different enzymes.
D)Their nucleic acids will completely hybridize.

Question

Quizplus · Accepted Answer

There is no significant relationship between the two organisms based solely on their G+C content in their nucleic acids. G+C content can vary widely between different species and is not a reliable predictor of relatedness. Therefore, option A is incorrect. The G+C content does not provide information about enzymatic activity, so option C is also incorrect. The G+C content can give an idea about the thermostability of their DNA, but it does not give any information about hybridization; therefore, option D is also incorrect.

Organism a Has 70 Moles % G+C,and Organism B Has