23. Which of the followings is the basis of the 'Modema COVID-19" vaccine? (A) Live attenuated vaccine (B) Inactivated vaccine (C) RNA-based vaceine (D) Protein subunit vaccine

5. Which of the following statements is INCORRECT for retroviruses? (A) They are enveloped RNA virus. (B) They encode reverse transcriptase and replicate through a DNA intermediate. (C) Some of them produce tumors in the infected animals. (D) Retroviruses include human immunodeficiency virus (HIV) which primarily infects CD8 T cells.

23. Which of the followings is the basis of the 'Modema COVID-19" vaccine?
(A) Live attenuated vaccine
(B) Inactivated vaccine
(C) RNA-based vaceine
(D) Protein subunit vaccine

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