Could someone help? Suppose that during replication of a gene, one nucleotide is copied incorrectly, But the protein of the new gene is the same as that coded for by the normal gene. How can this be explained?

When new rock is added to an oceanic ridge, the magnetized strips on either side of the ridge are evidence of sea-floor spreading. this is because the rocks on the two sides of the ridge o are equal in width and in polarity are polar opposites oare magnetized vary in width but are equal in polarity

During convection, less dense fluid rises and denser fluid sinks.

Which measure of an earthquake depends on how close you are to the focus?