All except number 2. Hope this helps!
The mutation was most likely the result of a change in the ability of the DNA replication.
<h3>How mutation occur?</h3>
Mutations result either from errors that occurs in DNA replication or caused by the mutagens, such as chemicals and radiation, which react with DNA and change the structures of individual nucleotides so we can conclude that the mutation was most likely the result of a change in the ability of the DNA replication.
Learn more about mutation here: brainly.com/question/17031191
Answer:
River basin is the area of land that is drained by a river system.
Explanation: River basin is also called drainage basin. River basin consist of one main big stream which collects water from many tributaries present on the left and right of the main stream. Water is collected from high ridge areas into these tributaries due to precipitation over there. These high areas is known as watershed. This main stream flows and drain into a river system.
