Embryology: Development and Theories Quiz

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Questions and Answers

What is the main focus of embryology?

The study of genetic diseases and birth defects in babies
The study of the origin and development of adult organisms
The study of the life cycle of organisms from birth to death
The study of the development of animals from the fertilized egg to the formation of all major organ systems (correct)

According to the preformation theories, where is the miniature organism presented?

In the zygote
In the head of the sperm (correct)
In the ovum
In the union of ovum and spermatozoon

Which theory assumes that embryonic development and differentiation originate in a homogeneous mass of living matter?

Recapitulation Theory
Cell theory
Preformation theories
Theory of Epigenesis (correct)

What was discovered with regard to the ovum and fertilization?

<p>The ovum was a single cell and fertilization consisted of the union of ovum and spermatozoon in the formation of the zygote (D)</p> Signup and view all the answers