all connective tissue are derived by "mesoderm"{an interaction between ectoderm and endoderm}
Answer:
<em>The four parathyroid glands make more or less parathyroid hormone (PTH) in response to the level of calcium in the blood. When the calcium in our blood goes too low, the parathyroid glands make more PTH. Increased PTH causes the body to put more calcium into the blood.</em>
<em>MARK AS BRAINLIEST!</em>
Answer: During DNA Replication
Explanation:
DNA Polymerase is the enzyme that uses a single stranded DNA template strand to produce a piece of dsDNA. This is used to replicate the DNA according to the semi-conservative model of replication.
During replication DNA polymerase makes approximately one mistake per 10^5 nucleotides. Thankfully the DNA polymerase has proof reading capabilities and has the ability to excise the mistake using it's 3' - 5' exonuclease domain.
