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:

Femoral Nerve

A major nerve in the leg that supplies sensation to the front of the thigh and part of the lower leg as well as motor control to muscles of the leg and hip.

Quadriceps Femoris

A large muscle group that includes four muscles on the front of the thigh, responsible for extending the knee and stabilizing the patella.

Iliopsoas

A large muscle group consisting of the iliacus and psoas major muscles, crucial for flexing the hip and spinal articulation.

Sartorius

The longest muscle in the human body, extending from the hip to the knee, involved in flexing, abducting, and rotating the thigh.