A. can cats learn to sit down on command
The answer is A. RNA polymerase will be making an mRNA using a single DNA strand as a template. So, for example if the DNA strand is AGGCAGC the mRNA strand will be UCCGUCG.
U= uracil which replaces thymine in mRNA molecules.
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The answer is horizontal gene transfer.
Horizontal gene transfer enables gene flow between genomes of two organisms. It is a common process between different species of <span>prokaryotes and even, between prokaryotes and eukaryotes. </span>When trying to reconstruct evolution and phylogenetic relationship, scientists face some difficulties because they cannot say the common gene transfer with the horizontal one.
Explanation:
the eggs seems to be rotten because when we add enough salt into water the density of water becomes greater than that of egg ,hence the floats and seems to be rotten