The correct option is A.
The DNA from one specie differ from the DNA of another specie on the basis of their base ratio. The base ratio refers to the percentage of purine to pyrimidine in a DNA molecule. The base ratio is the one that is responsible for the variability that is observed in chromosomes from different species.
DNA is from our generation, all to the beginning, therefore we may inherit traits of our ancestors.
<span>hose at risk of exposure to blood or bodily fluid
The health care employees that are eligible to receive a hepatitis b vaccination for free are those who are at a high risk of exposure to contaminated blood or bodily fluid, this is in the hope to prevent them from catching hepatitis b while dealing with patients.</span>
The answer to your question is A
