a 3.8-kg infant was delivered vaginally at 39 weeks after a 30-minute second stage. there was a nuchal cord. after birth the infant is noted to have petechiae over the face and upper back. information given to the infant’s parents should be based on the knowledge that

a. are benign if they disappear within 48 hours of birth.
b. result from increased blood volume.
c. should always be further investigated.
d. usually occur with forceps delivery.

Taq polymerase is an enzyme isolated from the organism thermophilus aquaticus. this organism has been found living in the hot springs of yellowstone national park. this enzyme is used to copy human dna from crime scenes. most reactions are performed at ranges similar to those of the human body; however, what considerations should be made for optimum use of this enzyme? view available hint(s)taq polymerase is an enzyme isolated from the organism thermophilus aquaticus. this organism has been found living in the hot springs of yellowstone national park. this enzyme is used to copy human dna from crime scenes. most reactions are performed at ranges similar to those of the human body; however, what considerations should be made for optimum use of this enzyme? the enzyme will not work on human dna.nothing should be altered.the ph should be decreased.the temperature should be raised.