Which of the characteristics of the malaria parasite Plasmodium listed below reflect the evolution of mechanisms to evade the immune system? Select all correct answer options
A. The fact that the malaria parasite is a
eukaryote.
B. The fact that infected cells remain in the
blood vessels and out of the spleen because
the malaria parasite expresses a sticky
protein in its plasma membrane.
C. The fact that the malaria parasite has a
nucleus and membrane-bound organelles.
D. The fact that the malaria parasite
produces proteins.
E. The fact that the malaria parasite shows
antigenic variation in its cell surface proteins.
B,E
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During DNA replication, which enzyme removes the RNA primers and then fills in the gap?
A. DNA pol I B. DNA primase C. DNA pol III D. DNA ligase
While our personal genomes can identify genetic risk factors, disease risk is often greatly increased by (select all that apply)
A. diet. B. exercise. C. exposure to drugs and other chemicals in our environment. D. exposure to ultraviolet radiation. E. none of these
In humans, hemoglobin is contained within
A. plasma. B. red blood cells. C. oxygen. D. platelets.
Choose the one most appropriate letter for each.
A. sharks B. crocodile C. placental mammal D. caecilians E. lancelets F. birds G. snakes H. placoderms I. lampreys J. opossum K. tunicates L. platypus M. bony fishes N. salamanders