Why Are Phytohemagglutinin and Then Colchicine Added to Blood Samples

question 3

Multiple Choice

Why are phytohemagglutinin and then colchicine added to blood samples before chromosome analysis is done?

• A) To lyse the red blood cells
• B) To enhance the chromosomal banding patterns
• C) To stimulate the cells to divide and arrest at metaphase
• D) So that chromosomes will align nicely on mitotic spindles
• E) So that homologous chromosomes will be paired at the equatorial plane of the cell

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Definitions:

Cambridge-Somerville

A study designed to evaluate the long-term effects of early intervention in preventing delinquency.

Intervention

A planned action or process aimed at changing a situation or condition, often used in the context of health, education, or social services.

Needs Assessment

A systematic process used to determine and address gaps between current conditions and desired outcomes.

Faculty Morale

The overall sense of well-being, satisfaction, and optimism among teachers or academic staff, significantly affecting their motivation and performance.