Suppose That a Scientist Is Experimenting in the Laboratory with Tissue

question 81

Essay

Suppose that a scientist is experimenting in the laboratory with tissue culture methods. Pith tissue that was isolated has grown an undifferentiated mass of cells (called a callus), and that tissue has been divided up and placed in the following culture media: (1) necessary nutrients plus indoleacetic acid; (2) necessary nutrients plus zeatin (a cytokinin); (3) necessary nutrients plus equivalent concentrations of indoleacetic acid and zeatin; (4) necessary nutrients plus an excess of zeatin and minimal indoleacetic acid. Explain what happens to the mass of tissue under each condition.

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Definitions:

Schizophrenic

Relating to schizophrenia, a mental disorder characterized by distortions in thinking, perception, emotions, language, sense of self, and behavior.

Inherited

Traits or characteristics that are passed down from parents to their offspring through genes.

Sibling

A person's brother or sister, including those related by blood, adoption, or marriage.

Same Environments

Situations or conditions in which individuals are exposed to identical or very similar external surroundings, often used in research to study genetic and environmental influences.