Which of the following characterizes dna: a. non. coding sequences that get deleted in the course of evolution b. coding sequences that regulate gene expression c. non-coding sequences that are expressed in different cell types

The correct answer will be option-B.

Explanation:

DNA is a molecule which acts as the genetic material of the cell. A living cell passes this genetic material to the daughter cell as it stores the information required by the cell.

The long DNA strand contains both coding and non-coding sequence in its length.  Since the coding sequence of a DNA is known as "gene" which codes for a trait of an organism as well as it controls the expression of other genes to express a particular trait.

Thus, Option-B is the correct answer.

answer; i believe the correct answer is (replication is not conservative);

amber has allowed scientists to study dna that has been preserved over millions of years.