Tempo is the frequency of a sound and it relates to the highness or lowness of a tone that we hear. true or false.

False! Tempo is the speed at which the sound is playing. The frequency of a sound and how it relates to the highness or lowness of the tone we hear is called pitch.

Explanation :

Pitch relates to the highness or lowness of a tone that we hear. It is basically the quality of sound.

While tempo is the speed of sound. It is defined as the number of beats per minute.

So, the given statement "Tempo is the frequency of a sound and it relates to the highness or lowness of a tone that we hear" is FALSE.

Best   everything's random. If a point mutation occurs in a non-coding region of DNA, then it won't cause any change at all- these are called silent mutations. However, if a point mutation occurs in a coding region, then it could vary in how much it affects the protein. A substitution may have a slight effect on the protein, if it changes the amino acid to something else with slightly different properties, a massive change in the protein, such as the sickle-cell anemia case, or no change at all in teh protein, if it manages to mutate the third base in a codon, becuase there is the "wobble" which sometimes makes it code for hte same amino acid.

Over types of point mutations can do much more. Insertions or deletions of a point mutation causes a more drastic change through a frameshift. Because the amino acid sequence is read in codons of three bases, if you delete or add one base, and all the following bases are shifted a little, then every codon from that point on is completely changed. This basically makes a completely useless protein, or no protein at all.