Which of the Following Statements Explains How Hemoglobin in a Human

question 29

Multiple Choice

Which of the following statements explains how hemoglobin in a human embryo has a higher affinity for oxygen than hemoglobin in the adult?

• A) Nonidentical genes produce different versions of globins at different stages of development.
• B) Globin pseudogenes interfere with gene expression in adults.
• C) Imprinting of globin genes changes the type of hemoglobin produced after birth.
• D) Throughout development, mutations accumulate during DNA replication altering the adult form.

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Definitions:

Carpal Tunnel Pressure

The pressure within the carpal tunnel, an anatomical compartment of the hand, potentially leading to carpal tunnel syndrome when increased.

Palmar Aponeurosis

A thick fibrous tissue layer in the palm of the hand that anchors the skin and helps in gripping.

Extensor Retinaculum

A fibrous band that binds the tendons of the extensor muscles of the wrist and ankle, preventing them from bowing during muscle contraction.

Flexor Retinaculum

A fibrous band of tissue that holds the tendons of the flexor muscles of the forearm near the wrist, preventing them from bowing outward.