gabbyypadron
31.10.2020 •
Biology
After DNA is unzipped, what is the next step in DNA replication?
A.Messenger RNA forms along the exposed DNA bases.
B.A chromosome with two identical strands of DNA is formed.
C.Nitrogen bases pair up with the DNA strands.
D.Ribosomes attach to DNA and move along the strand.
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Ответ:
Step 2: Primer Binding
The leading strand is the simplest to replicate. Once the DNA strands have been separated, a short piece of RNA called a primer binds to the 3' end of the strand. The primer always binds as the starting point for replication. Primers are generated by the enzyme DNA primase.
Explanation:
Ответ:
Antibiotic resistance is a consequence of evolution via natural selection.
Explanation:
The antibiotic action is an environmental pressure; those bacteria which have a mutation allowing them to survive will live on to reproduce. They will then pass this traits to their offspring which will be fully resistant generation