Why it is necessary to critique a scientific argument before it is accepted.

Its important to do so because you never are completely sure on if the scientist is completely accurate and that they have done everything right, that is why every scientist retraces another scientists steps and completely redoes the experiment themselves. Your trying to make sure that your work and factual evidence is 100% accurate and wont be able to be proved wrong

small, big, or no change could occur in the phenotype. it could cause something as simple as a cats ears to curl backwards or something as frighting as death. it could also occur in the protien-coding area and have an effect on that but no effect on the amino acids. what has to occur is a changing in the hox gene or the control gene.