Jacobsen Syndrome, Which Can Cause Heart Defects, Intellectual Deficiencies, and Bleeding

question 75

Multiple Choice

Jacobsen syndrome, which can cause heart defects, intellectual deficiencies, and bleeding disorders, is caused by a deletion of the terminal end of chromosome 11. What method could you use to determine whether an individual has Jacobsen syndrome?

• A) Look at a person's skin cells in G1 under a light microscope.
• B) Perform a karyotype using a person's white blood cells.
• C) Place a person's red blood cells in culture to see if they grow.
• D) Count the number of chromosomes present.

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Definitions:

Radioactive Isotopes

Atoms of the same element that have different numbers of neutrons in their nuclei, causing them to be unstable and decay, releasing radiation.

Phosphate Groups

Phosphate groups are chemical groups containing phosphorus and oxygen; they play a key role in energy transfer and molecular signaling in cells.

Covalent Bond

A chemical bond involving the sharing of electron pairs between atoms, leading to the formation of a stable molecule.

Hydrogen Bond

A hydrogen bond is a weak bond between two molecules resulting from an electrostatic attraction between a proton in one molecule and an electronegative atom in the other.