A Researcher Is Using Adult Stem Cells and Comparing Them

question 62

Multiple Choice

A researcher is using adult stem cells and comparing them to other adult cells from the same tissue. Which of the following is a likely finding?

• A) The cells from the two sources exhibit different patterns of DNA methylation.
• B) Adult stem cells have more DNA nucleotides than their counterparts.
• C) The two kinds of cells have virtually identical gene expression patterns in microarrays.
• D) The nonstem cells have fewer repressed genes.
• E) The nonstem cells have lost the promoters for more genes.

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Definitions:

Sensitive Ecosystems

Ecosystems that are highly responsive to environmental pressures or changes, often requiring special attention for conservation or restoration efforts.

Degraded Ecosystems

Ecosystems that have been damaged or impaired, often by human activities, resulting in reduced capacity to provide services and support life.

Beavers

Semi-aquatic rodents known for building dams, canals, and lodges, significantly impacting their surrounding environment and ecosystem.