Developmental Biology MCQs on Animals

1. The process by which organisms grow and develop is studied in?

A) Genetics
B) Developmental biology
C) Evolution
D) Ecology

Answer: B) Developmental biology

2. During embryonic development, what is the three-layered structure that forms and gives rise to the various tissues and organs in an animal?

A) Epidermis
B) Mesoderm
C) Endoderm
D) Ectoderm

Answer: B) Mesoderm

3. Which process involves the programmed death of cells during development, essential for shaping tissues and organs?

A) Mitosis
B) Meiosis
C) Apoptosis
D) Differentiation

Answer: C) Apoptosis

4. —— is a process by which unspecialized cells become specialized into different cell types?

A) Proliferation
B) Apoptosis
C) Differentiation
D) Mitosis

Answer: C) Differentiation

5. Invagination of the blastula during embryonic development produces?

A) Blastocyst
B) Gastrula
C) Morula
D) Zygote

Answer: B) Gastrula

6. Hollow ball of cells that undergoes several rounds of cell division is?

A) Morula
B) Blastula
C) Blastocyst
D) Gastrula

Answer: B) Blastula

7. The process during which zygotic phase ends with a multicellular embryo is

A) Fertilization
B) Cleavage
C) Gastrulation
D) Neurulation

Answer: B) Cleavage

8. In the blastocyst, —–layer of cells will form the embryonic part of the placenta?

A) Trophoblast
B) Endoderm
C) Ectoderm
D) Mesoderm

Answer: A) Trophoblast

9. A structure  that connects the developing fetus to the placenta?

A) Amniotic sac
B) Umbilical cord
C) Chorion
D) Allantois

Answer: B) Umbilical cord

10. —— process results in the splitting of a single fertilized egg into two embryos?

A) Cleavage
B) Fission
C) Budding
D) Regeneration

Answer: B) Fission