Bissoy.com
Doctors Medicines MCQs Q&A

Within which extra embryonic membrane are blood cells formed in the early stage of development?

Within which extra embryonic membrane are blood cells formed in the early stage of development? Correct Answer Yolk sac

Yolk sac provides nourishment. It produces blood cells until the placenta fully forms later in the pregnancy. Towards the end of first trimester the yolk sac shrinks and can no longer be seen on the sonogram.

Related Questions

In the question two statements are given, followed by two conclusions, I and II. Read all the conclusions and then decide which of the given conclusions logically follow/s from the given statements. Statements: All white blood cells are red blood cells. Some blood cells are red blood cells. Conclusions: I. All blood cells are red blood cells, is a possibility. II. Some red blood cells are not blood cells.
Consider the following statements about the Open and Closed Blood Circulatory System:   A) Open blood circulatory system does not contain special blood vessels to carry oxygenated and deoxygenated blood, while in the closed blood circulatory system blood vessels are present. B) Oxygenated and Deoxygenated blood gets mixed in the closed blood circulatory system, while oxygenated and deoxygenated blood does not get mixed in the open blood circulatory system. Choose the correct statement.
Consider the following statements regarding ‘Embryonic Stem (ES) cells: 1. These cells are derived from eggs fertilized in a woman's body. 2. The Embryonic cells are pluripotent. 3. The cells derived from ES cells can be used to replace/restore tissues that have been damaged by disease or an injury. Which of the following statement is/ are correct?
The question below consists of a set of labelled sentences. Out of the four options given, select the most logical order of the sentences to form a coherent paragraph. P: It’s a type of cancer of the blood cells caused by a rise in the number of white blood cells in the body.  Q: There is hardly anything you can do to prevent leukaemia. R: If a person appears pale, swollen gums, an enlarged liver or spleen, significant bruising, bleeding, fever, fatigue, the doctor should suspect leukaemia. S: They crowd out the red blood cells and platelets the body needs to be healthy. All those extra white blood cells don’t work right, and that causes problems.
Which of the following statement(s) is/are CORRECT for antigen activated effector T cells?
P. CD4+ cells make contact with macrophages and stimulate their microbicidal activity.
Q. CD4+ cells make contact with B cells and stimulate them to differentiate into plasma cells.
R. CD8+ cells make contact with B cells and stimulate them to differentiate into plasma cells.
S. CD8+ cells make contact with virus infected cells and kill them.
Given below is a statement followed by two conclusions numbered I and II. Assume everything in the statement to be true, and then decide which of the given conclusions logically follow (s), beyond a reasonable doubt, from the information given in the statement. Statement: The colour of blood is red due to the presence of red blood cells. Conclusion I: If red blood cells are removed, blood will lose its red colour. Conclusion II: Red blood cells will be red as long as they remain in the blood.
With reference to Red blood Cells, consider the following statements: 1. Red blood cells are responsible for transporting oxygen from lungs to body tissues and also transport carbon dioxide to your lungs for you to exhale. 2. Red blood cells can easily change shape, unlike White blood cells. Which of the statements given above is/are correct?
Which of the following statements are correct regarding the general difference between cell and nuclear membranes? 1. A cell membrane occurs in both Eukaryotes and Prokaryotes while a Nuclear membrane occurs only in Eukaryotes.  2. Both cell membrane and nuclear membrane persists throughout the lifetime of a cell. 3. The main feature of the nuclear membrane is the presence of two lipid bilayer structures while a cell membrane has single lipid bilayer structures. Select the correct answer using the code given below.
Consider the following statements regarding the Structure of cells: 1. Both Animal & Plant cells comprise amyloplast within the cell membrane. 2. Plant cells have plasmodesmata channels whilst animal cells do not. 3. Vacuoles in both plant cells & animal cells are always filled with solid substances. Which of the statement given above is/are not correct? 
Under the ABO method, a person with an unknown blood group loses a lot of blood in a road accident and needs an immediate blood transfusion. A friend of his, who has a valid certificate of his blood group, requests for blood donation without any delay. The blood group of the blood donor is: