Developmental Biology

Embryology MCQs with Answers

Welcome to the Embryology MCQs with Answers. In this post, we are sharing Embryology Online Test in Biology branch for different competitive exams. Find practice questions with answers of the Embryology test multiple choice questions with answers here. Each question offers a chance to enhance your knowledge regarding Embryology.

This is the subdiscipline of biological science, known as embryology, which describes development from fertilization till birth. This particular discipline encompasses the phases of development: from one fertilized egg or zygote through to the complex organism, cleavage, gastrulation and organogenesis. Good knowledge of embryology offers insight into normal development, congenital disorders, and reproductive health.

In fact, embryonic development commences at fertilization, since when the sperm and the egg are joined together to form a zygote. Some time after cell divisions, the zygote yields to the formation of the blastocyst. From the several layers of the blastocyst in gastrulation, all tissues and organs develop; all three germ layers which are produced consist of ectoderm, mesoderm, and endoderm. Organogenesis follows when it develops into specific organs and systems.

Teratogens are those factors that could be blamed for the abnormal development. Certain chemical exposures and infections with genetic mutations during critical periods of embryonic development give rise to congenital anomalies. Improvement in the science of embryology has helped study and manage such conditions better by modifying the nature of prenatal care and assisted reproductive technologies such as in vitro fertilization.

Research in embryology is applied to advance the medical practices and treatments into regenerative medicine while continuing the research with stem cells. Understanding the principles of embryology also helps in developing additional approaches to reproductive health and developmental disorders.

Embryology MCQs with Answers Quiz

By presenting 3 options to choose from, Embryology Quiz which cover a wide range of topics and levels of difficulty, making them adaptable to various learning objectives and preferences. Whether you’re a student looking to reinforce your understanding, our Biology Online Quiz platform has something for you.

  • Test Name: Embryology Online Test
  • Type: MCQ’s
  • Total Questions: 60
  • Total Marks: 60
  • Time: 60 minutes

Note: Questions will be shuffled each time you start the test. Any question you have not answered will be marked incorrect. Once you are finished, click the View Results button.

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Embryology MCQs

Embryology

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1 / 40

What is the term for the protective fluid-filled sac that surrounds the developing embryo?

2 / 40

Which of the following is a stage of prenatal development between the eighth week and birth?

3 / 40

Which of the following is the stage of development when organs begin to form?

4 / 40

What is the name of the process by which cells migrate to their destined locations during development?

5 / 40

What is the name of the hormone produced by the corpus luteum that helps maintain the uterine lining?

6 / 40

What is the term for the development of specialized cells and tissues from undifferentiated cells?

7 / 40

Which germ layer gives rise to the muscles, bones, and circulatory system?

8 / 40

Which structure forms from the mesoderm and eventually gives rise to muscles and bones?

9 / 40

What is the name of the developmental stage of the embryo when it consists of about 16 cells?

10 / 40

What is the term for the early stage of development in animals before the formation of organs?

11 / 40

Which of the following is the stage of prenatal development characterized by rapid cell division and differentiation?

12 / 40

What is the term for the hollow sphere of cells formed after several rounds of cell division during early embryonic development?

13 / 40

Which of the following is the innermost layer of cells in the early embryo?

14 / 40

Which of the following is the developmental stage where the three germ layers are formed?

15 / 40

What is the name of the process by which the embryo folds to form a cylindrical shape?

16 / 40

What is the study of the development of an organism from fertilization to birth called?

17 / 40

Which of the following is the period of rapid growth and maturation of tissues and organs in the fetus?

18 / 40

Which of the following structures develops from the endoderm and gives rise to the digestive system?

19 / 40

What is the term for the initial attachment of the blastocyst to the uterine lining?

20 / 40

Which structure connects the fetus to the placenta for nutrient exchange during development?

21 / 40

What is the name of the process by which a single fertilized egg divides into multiple cells?

22 / 40

Which structure produces hormones that help maintain pregnancy and support fetal development?

23 / 40

What is the term for the process by which the blastocyst becomes surrounded by the uterine lining?

24 / 40

What is the term for the process by which the blastocyst burrows into the uterine lining for implantation?

25 / 40

Which of the following is a hormone produced by the embryo that helps maintain pregnancy?

26 / 40

What is the term for the process by which cells take on specific structures and functions?

27 / 40

Which of the following is the stage of development when the primary germ layers form?

28 / 40

Which of the following is the outermost layer of cells in the early embryo?

29 / 40

What is the term for the process by which cells become committed to specific cell fates during development?

30 / 40

What is the term for the formation of specific structures in the embryo from the germ layers?

31 / 40

Which of the following structures develops from the ectoderm and gives rise to the skin and nervous system?

32 / 40

Which of the following structures provides nutrients and oxygen to the developing embryo?

33 / 40

What is the term for the process by which cells increase in number through division?

34 / 40

What is the term for the formation of the three germ layers during embryonic development?

35 / 40

Which germ layer gives rise to the nervous system and epidermis?

36 / 40

Which structure forms from the ectoderm and eventually gives rise to the brain and spinal cord?

37 / 40

What is the term for the process by which the blastocyst attaches to the uterine wall?

38 / 40

Which structure provides a barrier against infections and protects the developing embryo?

39 / 40

What is the name of the hormone produced by the syncytiotrophoblast that indicates pregnancy on a home pregnancy test?

40 / 40

What is the name of the process by which the blastocyst becomes embedded in the uterine lining?

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