Developmental Biology: Gastrulation and Neurulation Quiz

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What is the phase of embryonic development during which the single-layered blastula is reorganized into a tri-laminar structure known as the gastrula?

Gastrulation

What is referred to as the pole of the egg with the highest concentration of yolk?

Vegetal pole

What type of cleavage can occur depending on the amount of yolk in the egg?

Holoblastic cleavage

What is the phase of embryonic development that involves the formation of the internal organs of the organism?

<p>Organogenesis</p> Signup and view all the answers

What are the three germ layers formed during gastrulation and what are they called?

<p>The three germ layers formed during gastrulation are the ectoderm, mesoderm, and endoderm.</p> Signup and view all the answers

What is the process of forming the neural tube called?

<p>The process of forming the neural tube is called neurulation.</p> Signup and view all the answers

What are the two types of cleavage that can occur depending on the amount of yolk in the egg?

<p>The two types of cleavage that can occur depending on the amount of yolk in the egg are holoblastic (total or entire cleavage) and meroblastic (partial cleavage).</p> Signup and view all the answers

Define organogenesis.

<p>Organogenesis is the formation of the internal organs of the organism.</p> Signup and view all the answers

What is the pole of the egg with the highest concentration of yolk referred to as?

<p>The pole of the egg with the highest concentration of yolk is referred to as the vegetal pole.</p> Signup and view all the answers

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