What Is Considered to Be the First Evidence of Differentiation

question 46

Multiple Choice

What is considered to be the first evidence of differentiation in the cells of an embryo?

• A) cell division occurring after fertilization
• B) the occurrence of mRNAs for the production of tissue-specific proteins
• C) determination of specific cells for certain functions
• D) changes in the size and shape of the cell
• E) changes resulting from induction

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Definitions:

Transtheoretical Model

A theory of behavior change that describes the process of intentional change through distinct stages.

Stages of Change

A psychological model that outlines an individual's journey towards changing behavior, typically presented in five or six stages including precontemplation, contemplation, preparation, action, maintenance, and sometimes relapse.

Motivational Stages

The various phases an individual goes through in the process of changing behavior, typically modeled within theories such as the stages of change model.

Theory of Planned Behavior

A psychological theory that predicts an individual's intention to engage in a behavior at a specific time and place by considering their attitudes, subjective norms, and perceived control over the behavior.