Rebecca found out that she has a mass of dividing cells called a tumor in her ovaries. She has had tests and is returning to the doctor. Which of the following would be the best news that Rebecca could receive from her doctor?
A. It is a benign tumor.
B. The cells are cancerous and are in situ.
C. It is malignant ovarian cancer.
D. The tumor has metastasized and invaded neighboring tissue.
E. It is a malignant tumor.
Answer: A
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The concept of mapping genes on chromosomes was developed by ____ when he was an
undergraduate student.
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An opening in leaves that functions in the
exchange of gases is called a a. cuticle. b. stoma. c. guard cell. d. pit. e. pore.
During the 1920s to 1940s, biologists combined Mendelian genetics with Darwin's theory to form a unified
explanation of evolution that is referred to as: a. neo-evolution. b. genetic evolution. c. classical Darwinism. d. evolutionary genetics. e. the modern synthesis.