Amniotes Differ from Earlier Vertebrates by ____

question 54

Multiple Choice

Amniotes differ from earlier vertebrates by ____.  

• A) their large size
• B) their three-chambered heart
• C) producing eggs in which the young can develop away from water
• D) the possession of a slimy skin
• E) having external scales

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Definitions:

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.

Operon

A functioning unit of genomic DNA containing a cluster of genes under the control of a single promoter, found in prokaryotes.