A Study of an Experimental Blood Thinner Was Conducted to Determine

question 48

Essay

A study of an experimental blood thinner was conducted to determine whether it works better than the simple aspirin tablet in warding off heart attacks and strokes. The study involved 20,000 people who had suffered heart attacks, strokes, or pain from clogged arteries. Each person was randomly assigned to take either aspirin or the experimental drug for 1 to 3 years. Assume that each person was equally likely to be assigned one of the two medications.
Devise a randomization plan to assign the medications to the patients.
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Will there be an equal number of patients in each treatment group? Explain.
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Definitions:

Allele

One of two or more versions of a gene, each allele results in different traits or characteristics in an organism.

Maternal Chromosome

One of the two chromosomes in each pair originating from the mother, found in the offspring.

Paternal Chromosome

One of a pair of chromosomes in a diploid organism that is inherited from the father, contributing to the genetic material of the offspring.

Crossing Over

A genetic process during meiosis where two chromosomes pair up and exchange segments of their genetic material.