Just Prior to the Onset of Gastrulation in an Embryo

question 51

Multiple Choice

Just prior to the onset of gastrulation in an embryo, the "organizer" cells are specified. What would you expect in the developing embryo if the specification of these cells were experimentally blocked?

• A) There would be no effect on development.
• B) Gastrulation would not occur, and normal development would cease.
• C) The body axes would develop normally, but the embryo would not grow appendages.
• D) The embryo would not develop an intestine, but all other organs and tissues would develop normally.

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Definitions:

Economic Conditions

The state of the economy at a certain time, including factors like inflation, unemployment rates, and GDP growth.

Acculturation

The process of cultural change and psychological change that results following meeting between cultures.

Enculturation

The process by which individuals learn and adopt the values, customs, and norms of their culture.

Assimilation

The process by which a person or a group's language and/or culture come to resemble those of another group.