Developmental Biology Worksheet
Explore key concepts in Grade 12 Developmental Biology, including embryonic development, cell differentiation, and genetic regulation.
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Developmental Biology Worksheet
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Read each question carefully and provide thoughtful answers based on your knowledge of developmental biology.
1. Which of the following best describes the process of gastrulation?
Formation of the zygote from sperm and egg.
The process of cell division without growth.
The rearrangement of cells to form three primary germ layers.
The development of organs from germ layers.
2. What is the primary role of homeotic genes in development?
Controlling cell metabolism.
Determining the overall body plan and segment identity.
Regulating immune responses.
Initiating apoptosis.
3. The three primary germ layers formed during gastrulation are the , , and .
4. refers to the process by which a less specialized cell becomes a more specialized cell type.
5. Briefly explain the concept of induction in developmental biology.
6. All cells in an embryo contain the same genetic information.
True
False
7. Apoptosis is a programmed cell death that is crucial for normal development.
True
False
8. Observe the image below showing embryonic development stages. Based on your understanding, identify the stage depicted in the first panel and describe a key event occurring at that stage.
Match the developmental term with its definition.
9. Morula
a. Formation of organs
10. Organogenesis
b. Solid ball of cells
11. Blastula
c. Hollow ball of cells with a fluid-filled cavity