Animal Developmental Patterns Practice Questions
20 free Animal Developmental Patterns practice questions for the Zoology, each with the correct answer and a detailed explanation. Open any question below, or take the full set as an interactive quiz.
Questions
20 questions
All Animal Developmental Patterns questions
- Q1. Which type of cleavage is characteristic of the Drosophila melanogaster (insect) embryo, where the nuclei divide in a common cytoplasm before cell membranes fo…
- Q2. In amphibian development, what is the primary role of the 'Gray Crescent' formed after fertilization?
- Q3. Birds utilize discoidal meroblastic cleavage. Which part of the avian egg actually undergoes division to form the blastoderm?
- Q4. Which specific gene in Drosophila is responsible for establishing the anterior-posterior axis by acting as a morphogen gradient from the anterior pole?
- Q5. What is the function of the 'Spemann-Mangold Organizer' in amphibian embryos?
- Q6. In the avian embryo, the formation of the 'Primitive Streak' is functionally equivalent to which structure in amphibians?
- Q7. Insects like the honeybee undergo 'holometabolous' development. This means their life cycle includes which distinct stages?
- Q8. Mid-blastula transition (MBT) in amphibians is characterized by which of the following events?
- Q9. The 'Hensen’s Node' in bird embryos is the functional equivalent of the amphibian:
- Q10. Which extraembryonic membrane in birds is responsible for the storage of uric acid and also participates in gas exchange?
- Q11. Drosophila 'Gap genes' are primary targets of maternal effect genes. What is the phenotypic result of a mutation in a gap gene?
- Q12. In amphibians, which hormone is primarily responsible for triggering metamorphosis from a tadpole to an adult frog?
- Q13. The insect hormone 'Ecdysone' is responsible for which of the following processes?
- Q14. During avian gastrulation, the cells that remain on the surface after others have migrated through the primitive streak become the:
- Q15. Which of the following describes 'Hemimetabolous' development in insects?
- Q16. What is the 'Subgerminal Cavity' in the context of avian development?
- Q17. In Drosophila, 'Homeotic (Hox) genes' are responsible for:
- Q18. The 'Nieuwkoop Center' in amphibians is responsible for inducing which of the following?
- Q19. In birds, the 'Area Pellucida' refers to:
- Q20. Which insect developmental genes are expressed in periodic stripes to define the 14 parasegments of the embryo?