What are the complementary base pairs to the DNA sequence below?
TACGAT

The greenhouse effect a. something that has occurred for millions of years b. an unnatural phenomenon caused by humans that maintains earths temperature range. c. the results of the differences in the angle of the suns rays d. an unnatural phenomenon that causes heat energy to be radiated back into the atmosphere

Which charactistic is a property of water ?

Explain the purpose of a molecular clock and the properties that a section of protein must have to be used in this way.