DNA is formed by using instructions contained in a corresponding molecule named RNA. Any changes in the nitrogenous bases that form the RNA strand that are left uncorrected will also cause a change in the resulting DNA strand. The indicated base in the RNA sequence below has changed from a base named G to a base named C.

If this RNA strand is used to make a DNA strand, what process will have occurred?
A.
natural selection
B.
mutation
C.
extinction
D.
combination

B

Explanation:

Mutations are any changes to the sequence of nucleotides on DNA. These mutations can be caused by environmental factors such as UV rays from the sun of mutagens like arsenic. These mutations cause a change in the protein that is translated from the DNA. Some mutations are lethal while some are silent.

Mutations though very rare, but also very significant since they diversify alleles hence giving a base on which natural selection pressures can act on to help a population adapt to changes in the environment.

pv=nrt

explanation: