Fetal Hb Is the Predominant Form of Hb in the Fetus.It

question 6

Multiple Choice

Fetal Hb is the predominant form of Hb in the fetus.It is about 90% of the total Hb at 24 weeks of gestation.When is HbF replaced by HbA?

• A) At 40 weeks of gestation
• B) At first month of life
• C) At second month of life
• D) At 6-12 months of life

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Definitions:

CFC

Chlorofluorocarbon, a class of compounds used as refrigerants, solvents, and propellants in aerosols, contributing to ozone layer depletion when released into the atmosphere.

Asymmetric Carbon

A carbon atom attached to four different types or groups of atoms, making it a stereo center.

Monochlorinated Products

Compounds that result from the introduction of a single chlorine atom into a molecule, often through substitution reactions.

Free-radical Chlorination

A chemical reaction in which chlorinated molecules are produced by the action of chlorine radicals, often used to synthesize chlorinated organic compounds.