Why is it that patches placed on the skin can be used to deliver medications to the bloodstream?

When water freezes, it . contracts expands

The picture showed normal blood cells which are around and sickle cells which appear much longer people with sickle-cell suffer from the sickle cell anemia which is inherited diseaseit is caused by a change in gene responsible for production of hemo goblin this type of change is known as an

Dna replication or repair occurs in a cell in all of thw following situations except when