Answer: Silent mutations occur when the change of a single DNA nucleotide within a protein-coding portion of a gene does not affect the sequence of amino acids that make up the gene's protein. ... And when the amino acids of a protein stay the same, researchers believed, so do its structure and function.
Explanation:
Aristotle's model shows the planets in the celestial realm moving around the Earth in an orderly manner, in perfect circles and with uniform motion-neither speeding up nor slowing down.
B. Hydrogen bonds make the positive sides of water molecules stick to each other
Answer:
It is predominantly solid but in geological time it behaved as a viscous fluid.
Explanation:
Answer:
Direct contact.
Explanation:
Since it was spread through facial tissue, physical contact is needed.
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