Researchers Have Extended the Life of a Human Cell By

question 86

Multiple Choice

Researchers have extended the life of a human cell by:

• A)removing the caps of DNA molecules.
• B)injecting it with telomerase.
• C)rearranging the DNA sequences.
• D)splicing the 18^th and 19^th chromosomes.

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Definitions:

Erik Erikson

A psychoanalyst known for his theory on the psychosocial development of human beings, encompassing eight stages from infancy to adulthood.

Sigmund Freud

An Austrian neurologist best known for founding psychoanalysis, a method for treating psychopathology through dialogue between a patient and a psychoanalyst.

Lawrence Kohlberg

A psychologist best known for his theory of stages of moral development.

Reversibility

The understanding that certain operations or actions can be done and then undone, returning to the original state, a concept crucial in cognitive development.