To show he presence of a trait you would need to follow it through multiple generations in a pedigree.
The type of mutation that would cause the most dramatic change in the polypeptide or protein product of a certain gene is the base-pair deletion. A deletion is a mutation in which the part or the base is lost during the process of replication. Any number of nucleotides can be deleted from a single base to an entire piece of chromosome.
<u>Answer:</u>
<em>A constant is something whose value cannot be changed and is used for comparison purpose. </em>
<u>Explanation:</u>
The controlled variable is a type of variable whose value is kept constant during the experiment to get the desired or expected result. The difference between constant and a control variable is that the constant can never be changed.
However, the value of control variable can be changed but is kept constant with a purpose in an experiment to get the data. The controlled variable in a battery can be the multi meter that should be used for all the batteries.
