In Humans,the Embryonic and Fetal Forms of Hemoglobin Have a Higher

question 4

Multiple Choice

In humans,the embryonic and fetal forms of hemoglobin have a higher affinity for oxygen than that of adults.Why is this the case?

• A)Nonidentical genes produce different versions of globins during development.
• B)Identical genes generate many copies of the ribosomes needed for fetal globin production.
• C)Pseudogenes interfere with gene expression in adults.
• D)The attachment of methyl groups to cytosine following birth changes the type of hemoglobin produced.

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Definitions:

Small-For-Date

A term used to describe babies who are born with a weight lower than the normal range for their gestational age.

Preterm

Refers to babies born before 37 weeks of gestation; often called premature babies, they may face various health challenges early in life.

Permanent Disabilities

Long-term impairments that significantly affect one's ability to perform daily activities, which are not expected to improve significantly over time.

Habituated

The process by which an organism decreases or ceases its responses to a repetitive stimulus after being repeatedly exposed to it.