In Comparison to a Newborn, a 4-Month-Old Infant Spends ____

question 23

Multiple Choice

In comparison to a newborn, a 4-month-old infant spends ____ time sleeping and ____ time in alert activity.

• A) less; more
• B) less; about the same amount of
• C) about the same amount of; less
• D) more; less

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Definitions:

Transcriptionally Inactive

Describes genes or segments of DNA that are not being transcribed into RNA.

Constitutive Genes

Genes that are continuously expressed under normal cellular conditions, providing the basic functions necessary for the cell's survival.

Housekeeping Genes

Genes that are constantly expressed to maintain basic cellular function; they are essential for the maintenance of normal cellular activities.

Alternatively Spliced

Refers to the process by which different combinations of exons are joined or spliced together, resulting in multiple mRNA variants from a single gene.