Search over 10,000 free study notes

The double stranded DNA is first unzipped by an enzyme called helicase. Helicase separates the two strands of DNA, and creates the replication fork. Essentialy two single stranded DNA chains are created, ...

blood vessels narrow (vasoconstriction) reduces blood flow blood vessels are close to the surface of the skin less heat lost by radiation

In our bodies we have a host of cells that make up our immune system. The immune system itself can be divided into the innate and adaptive immune response. If we use an analogy, the innate immune system a...

The process of moving air into and out of your lungs is called ventilation, or breathing. Ventilating the lungs is brought about by the contraction and relaxation of the intercostal muscles and the diaphr...

Mitosis is one of the two types of cell division in eukaryotes. It results in two daughter cells that are identical to the parent cells. The daughter cells have the same alleles in order for the organism'...