Biology · Human Health and Disease
Which of the following statements regarding passive immunity are correct? 1. It provides immediate protection but lacks immunological memory 2. It is naturally acquired through placenta and colostrum 3. It involves clonal selection and proliferation of lymphocytes
- 1All of the above
- 2Only 1 and 3
- 3Only 2 and 3
- 4Only 1 and 2✓
Correct answer
Only 1 and 2
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