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Animal Reproduction and Development

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Questions and Answers

What is unique about the development of cells in C.elegans compared to mammals?

There is little variation in patterns of cell lineage between individuals (correct)

The neural system forms before organogenesis

Cell development is dependent on cellular cues

There is high variation in patterns of cell lineage between individuals

What is the primary step during organogenesis in vertebrates?

Formation of the circulatory system

Formation of the skeletal system

Formation of the digestive system

Formation of the neural system (correct)

What is the role of growth factors during neural system formation?

They induce the formation of epidermal cells

They inhibit the formation of neural tube

They promote the formation of neural plate

They signal cells to become epidermis cells (correct)

What would happen if signaling by growth factors were disrupted?

The entire ectoderm would differentiate into neural tissue (A) Signup and view all the answers

What is the resulting structure after the neural plate undergoes a series of cell movements?

Neural tube (D) Signup and view all the answers

What gives rise to the brain and the spinal cord?

Neural tube (A) Signup and view all the answers

What develops from the mesoderm that lies on either side of the vertebrate neural tube?

Various connective tissues of the animal body (C) Signup and view all the answers

What is the result of the spatial pattern of gene expression in the mesoderm?

Reorganization of the mesoderm into somites (D) Signup and view all the answers

What is the function of the neural tube?

It gives rise to the brain and the spinal cord (A) Signup and view all the answers

What is the significance of the somites in development?

They are groups of cells that will develop into connective tissues (B) Signup and view all the answers