In birds, the 'Area Pellucida' refers to:
Show answer and explanation
Correct answer: The translucent central region of the blastoderm
The Area Pellucida is the central part of the avian blastoderm that appears clear because it is separated from the yolk by the subgerminal cavity. The surrounding region attached to the yolk is the Area Opaca.
Keep practicing
More Animal Developmental Patterns questions
- Which insect developmental genes are expressed in periodic stripes to define the 14 parasegments of the embryo?
- Which type of cleavage is characteristic of the Drosophila melanogaster (insect) embryo, where the nuclei divide in a common cytoplasm befo…
- In amphibian development, what is the primary role of the 'Gray Crescent' formed after fertilization?
- Birds utilize discoidal meroblastic cleavage. Which part of the avian egg actually undergoes division to form the blastoderm?
- Which specific gene in Drosophila is responsible for establishing the anterior-posterior axis by acting as a morphogen gradient from the an…
- What is the function of the 'Spemann-Mangold Organizer' in amphibian embryos?