Which enzyme unwinds the DNA during transcription?
a. helicase
b. DNA polymerase
c. DNA replicase
d. RNA polymerase
e. RNA replicase
ANSWER: d
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Which of the following is NOT classified as a type of connective tissue?
a. bone b. cartilage c. glands d. adipose e. blood
Which organism is the most photosynthetically productive living organism that forms underwater forests over 100 meters long?
A. diatoms B. brown algae C. golden algae D. red algae E. green algae
Which of these factors would have the least effect on heat transfer processes in animals?
A. Internal insulation such as blubber B. Difference between body temperature and ambient temperature C. Bone density D. Surface area of the body E. External insulation such as feathers or fur
Endosymbiotic theory explains how ____ evolved organelles
Fill in the blank(s) with the appropriate word(s).