Answer:
The correct answer will be option-C
Explanation:
The CsCl gradient centrifugation in Meselson Stahl experiments is done to separate the bands of the DNA containing isotopes on the basis of difference in the density.
In the experiment, bacterial cultures were grown in the medium of 15N and 14N but if we repeat the experiment with P32 and P31 instead of 15N and 14N and centrifugation is performed then the banding pattern will be the same as of the previous experiment as the method of the replication is same that is semi-conservative.
Thus, Option-C is the correct answer.
20. The answer is 1 (Precambrian)
21. The answer is 4 (Pennsylvanian)
22. The answer is 2 (Bony Fishes, Dinosaurs, and Mammals)
23. The answer is 2 (Reptiles)
Answer:
Law
Explanation:
The human instincts are a product of natural biological phenomenons which define and construct human behaviors. The standardized rules and norms of the society are formed by the society and is generally very open for interpretation.
People learn from looking at other people and adapt to the most common social behaviors. That is how they adhere to the standardized norms and rules of the society.
Therefore laws help in standardization
I hope the answer is helpful.
Thanks.
Answer:
Homologous structures provide evidence for common ancestry
Answer:
Temperature
Explanation:
catalyst have specify temperature range for their efficiency
