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712 Physiology

A 30-year-old pregnant woman and her 2-year-old child are residing in high altitude area. The child is sho in stature, has a potbelly and enlarged protruding tongue, and is developmentally delayed. Iodine is prescribed for mother and child, with the hope of preventing mental retardation in the developing fetus. All are true about oxidation of iodide except

AConversion of iodide to iodine
BPromoted by enzyme peroxidase
CIodide transpoed to follicular lumen by Na-I sympoer
DPropylthiouracil blocks this step
Physiology
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713 Physiology

Transcription refers to

Athe process where an mRNA is used as a template for protein production.
Bthe process where a DNA sequence is copied into RNA for the purpose of gene expression.
Cthe process where DNA wraps around histones to form a nucleosome.
Dthe process of replication of DNA prior to cell division.
Physiology
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