Answer:
DNA is one of the major sources might be wrong tho
Explanation:
DNA and the genetic code reflect the shared ancestry of life. DNA comparisons can show how related species are. Biogeography. The global distribution of organisms and the unique features of island species reflect evolution and geological change.
Answer: Choice D
Explanation: Natural selection explains how the strong survive due to mutations to suit the environment.
Answer: you need to divide mass by volume, the honey will sink to the very bottom and the corn oil will float to the top
Explanation:
The answer to the blank i think is bond im not 100% sure though..
Apurinic sites in an intact double helix DNA molecule result from the loss of a nucleotide base.
<h3>What is an apurinic site? </h3>
An apurinic/apyrimidinic/abasic site is a position in a molecule of DNA which lacks any purine or pyrimidine base. These sites are also found in RNA molecules but their frequency is more in DNA molecules.
DNA damage caused by a spontaneous depurination can result in the formation of an abasic site.
In the presence of an abasic site, DNA polymerases cannot function. Thus to maintain the integrity of the genome, these sites need to be repaired.
Two methods to repair are base excision repair and nucleotide excision repair.
Read more about DNA damage, here
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