A key part of the Watson-Crick model came when Watson realized that adenine could form hydrogen bonds with thymine and guanine could form hydrogen bonds with cytosine. This explains why A = T and G = C in Chargaff's rules. Also, these two hydrogen-bonded nucleotide pairs had the exact same width, so they could form the rungs of the DNA ladder. The fact that these pairs could match up only in this way meant that the sequence of bases in one strand could determine the sequence of bases in a second strand created from the first. The second strand is said to be complementary to the first strand. Individual bases are paired so that the identity of any base determines the identity of the base paired with it; that is, the complementary base.

This table lists the base abbreviations for bases in a sample of single-stranded DNA. Fill in the second column with the base abbreviations that are complementary to the given bases.

A
T
T
C
A
G
G
C
T
A

surface mining destroys mountain tops, landscapes, forests and wildlife habitats. on top of that, it leads to soil erosion and destruction of agricultural land. the landscape changes can also disrupt river channels and streams, which leads to flooding. which, can destroy plant life and other animals as well.

explanation:

the answer is d (apex) good luck : ))

hi my name is ashlynn and im 15

these macromolecules could either be amino acids, proteins or nucleic acids. they are responsible for the chemical changes and reactions that affects largely the cell and its composition. take for instance the cytoplasm of the cell where these organelles are settled. these simple organelles are composed of macromolecules which ignites and catalyses different functions that enables cells, in macro-perspective in motion and metabolism. in intestines for example, metabolism happens and breaking down parts of a food to simpler compounds that are used and these nutrients delivered throughout the body and again broken down by into smaller components.

the dali lama

explanation:

he is quite fat and then we can talk about the details