The neutral-mutation hypothesis proposes that most molecular variation is neutral with regard to natural selection and is shaped largely by mutation and genetic drift.

TLS Online TPP Program

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#Unit 4. Cell Communication and Cell Signaling

Passive immunization, in which preformed antibodies are transferred to a recipient.

TLS Online TPP Program

#Id: 1660

#Unit 4. Cell Communication and Cell Signaling

Naturally occurs when maternal IgG crosses the placenta to the developing fetus.

Maternal antibodies present in breast milk can also provide passive immunity to the infant in the form of maternally produced IgA.

TLS Online TPP Program

#Id: 1661

#Unit 4. Cell Communication and Cell Signaling

Use of Passive vaccine, 

a. Immune deficiency

b, Toxin or venom exposure with immediate threat to life

c, Exposure to pathogens that can cause death faster

TLS Online TPP Program

#Id: 1662

#Unit 4. Cell Communication and Cell Signaling

Passive vaccine- Measles, Rabies, Snake bite, Hepatitis A and B, Cytomegalovirus, Diphtheria

TLS Online TPP Program

#Id: 1663

#Unit 4. Cell Communication and Cell Signaling

Active Immunization

TLS Online TPP Program

#Id: 1664

#Unit 4. Cell Communication and Cell Signaling

For good vaccine

a. The vaccine must be safe

b. It must be effective in preventing infection

c. Activation of the humoral and cell-mediated

d. Development of long-term immunologic memory