The Parents-To-Be Were Shocked When an Ultrasound Scan Done in the Second

question 19

Multiple Choice

The parents-to-be were shocked when an ultrasound scan done in the second trimester of the pregnancy showed a fetus with obviously broken leg bones and ribs.The doctor diagnosed osteogenesis imperfecta.This is caused by a mutation in a gene that encodes

• A) beta globin.
• B) alpha globin.
• C) a clotting factor.
• D) myosin.
• E) collagen.

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Definitions:

Cyclopentanecarboxylic Acid

A cycloalkane derived carboxylic acid, with the carboxyl group attached to a five-membered ring.

Reagents

Substances or compounds used in chemical reactions to cause or analyze a chemical change.

Reaction

An action through which one or more starting materials, or reactants, are altered to yield one or more new substances, termed products.

Reagents

Components or substances employed in a system to provoke a chemical reaction or to determine if such a reaction happens.