Which of the following characteristics describes the blastoderm embryonic tissue?

• A. Contains 13 cells
• B. Is one cell layer deep
• C. Will develop into primordial germ cells
• D. Forms outer later of the organism

Answer: (B)

Verified step by step guidance

1. Understand the context: The blastoderm is an early stage in embryonic development, particularly in organisms like birds and insects. It is a layer of cells formed during the early stages of embryogenesis.
2. Identify the structure: The blastoderm is typically a single layer of cells that forms on the surface of the yolk in the early embryo. This is crucial for understanding its characteristics.
3. Consider the developmental role: The blastoderm will give rise to various tissues and structures in the developing organism, including the formation of primordial germ cells, which are the precursors to gametes.
4. Evaluate the options: Analyze each characteristic provided in the problem. The statement 'Is one cell layer deep' aligns with the typical structure of a blastoderm, which is indeed a single layer of cells.
5. Conclude with the correct characteristic: Based on the understanding of the blastoderm's structure and function, the characteristic 'Is one cell layer deep' accurately describes the blastoderm embryonic tissue.