Thyroid Hormones

question 40

Multiple Choice

Thyroid hormones

• A) regulate basal metabolic rate
• B) are released from the thyroid gland immediately after synthesis
• C) contain chromium and zinc as structural cofactors
• D) are tropic
• E) none of these

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Definitions:

Monozygotic Twins

Twins that originate from a single fertilized egg, sharing identical genetic material.

Dizygotic Twins

Also known as fraternal twins, are two siblings born from separate eggs fertilized by separate sperm cells, sharing about 50% of their genes.

Heritability Coefficient

The heritability coefficient is a statistical measure that estimates the proportion of variation in a population's traits that can be attributed to genetic differences among individuals.

Dizygotic Twin

Dizygotic twins, also known as fraternal twins, are siblings born from two separate eggs fertilized by two different sperm cells, resulting in them being genetically distinct, much like regular siblings.