Smith Studies a Group of 1,000 People Who Have Schizophrenia

question 137

Multiple Choice

Smith studies a group of 1,000 people who have schizophrenia and who also have identical twins. He finds that 47% of the identical twins also develop this disease. The type of statistical information Dr. Smith's study reveals is called:

• A) concordance
• B) an H-E (Heredity-Environment) Index
• C) a genetic-based percentage
• D) analysis of variance

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Definitions:

Assisted Reproduction

A range of medical procedures used to address infertility, including in vitro fertilization (IVF) and sperm donation.

Delayed Childbearing

The decision to postpone having children, often for personal, educational, or career reasons, which may have implications for fertility and maternal health.

Meiosis

A type of cell division that reduces the chromosome number by half, leading to the production of gametes in animals and spores in plants.

Chromosomes

Coils of DNA that consist of genes.