What Makes the Cells of a Developing Embryo Differentiate into Various

question 94

Multiple Choice

What makes the cells of a developing embryo differentiate into various types of cells?

• A) Special genes in the cytoplasm cause this differentiation.
• B) They have different genes.
• C) Different genes are activated.
• D) Once certain genes of a cell have caused it to differentiate, the other genes are lost.
• E) The DNA of their mitochondria is different.

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Definitions:

Fly

A small, winged insect belonging to the order Diptera, known for its ability to fly quickly and its role in various ecosystems as both pollinator and decomposer.

Thyroid Hormone

Iodine-containing hormones that collectively increase metabolic rate and play a role in development.

Thyroid-Stimulating Hormone

Anterior pituitary hormone; stimulates secretion of thyroid hormone by the thyroid.

Parathyroid Hormone

A hormone produced by the parathyroid glands that regulates calcium levels in the blood and bones.