The answer is relative dating.
They attach to the chromosomes, line them up during metaphase, and pull them apart during anaphase
The whooping cough vaccine is harmless
for the patient and the baby. Doctors and midwives who major in in caring for
pregnant women approve that it is significant to be acquired throughout the
third trimester of pregnancy. Adults who are 19 years old and older must only acquire
one dosage of the Tdap vaccine.