Biology

Embryonic Development

621 Questions

Embryonic development questions cover the biological processes of gamete fusion, germ layer formation, and fetal maturation. The focus lies in identifying extraembryonic structures, trophoblast functions, and sequential developmental stages. This specialized topic appears regularly in biology screening tests and medical entrance examinations.

Germ layer formationBlastocyst implantationExtraembryonic structuresFetal development stagesReproductive physiology

Embryonic Development Questions

Multiple choice

Which transcription factor is essential for the development of the heart?

  1. Nkx2.5

  2. Gata4

  3. Tbx5

  4. Meis1
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Nkx2.5 is a transcription factor that plays a crucial role in the development of the heart, regulating the expression of genes involved in heart formation and function.

Multiple choice

Which of the following is NOT a germ layer?

  1. Ectoderm

  2. Mesoderm

  3. Endoderm

  4. Neuroectoderm
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Neuroectoderm is not a germ layer, but rather a specialized region of the ectoderm that gives rise to the nervous system.

Multiple choice

Which of the following is NOT a stage of embryonic development?

  1. Cleavage

  2. Gastrulation

  3. Organogenesis

  4. Metamorphosis
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Metamorphosis is not a stage of embryonic development, but rather a process that occurs after birth in some animals, such as insects and amphibians.

Multiple choice

Which of the following is NOT a type of embryonic membrane?

  1. Amnion

  2. Chorion

  3. Allantois

  4. Yolk sac
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The yolk sac is not an embryonic membrane, but rather a structure that provides nutrients to the developing embryo.

Multiple choice

Which of the following is NOT a type of gastrulation?

  1. Epiboly

  2. Emboly

  3. Delamination

  4. Invagination
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Emboly is not a type of gastrulation, but rather a process by which cells migrate from one part of the embryo to another.

Multiple choice

Which of the following is NOT a type of organogenesis?

  1. Neurulation

  2. Myogenesis

  3. Chondrogenesis

  4. Histogenesis
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Histogenesis is not a type of organogenesis, but rather a process by which tissues are formed from cells.