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प्रश्न
State the Function of Chorionic Villi
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उत्तर
The function of Chorionic villi:
• It interdigitates with projections from uterine tissue to form a structure called the placenta, which is the connecting link between the mother and the foetus.
• It facilitates the supply of oxygen and nutrients to the embryo.
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संबंधित प्रश्न
Which of the following hormones is not secreted by human placenta?
Urine test during pregnancy determines the presence of ______.
In the event of pregnancy, the corpus luteum persists under the influence of ______.
In the development of the human body, the ectoderm is responsible for the formation of ______.
The early stage human embryo distinctly possesses ______.
The concentration of which of the following substances will decrease in the maternal blood as it flows from embryo to placenta through the umbilical cord?
The human foetus within the uterus
- Oxygen
- Amino Acids
- Carbon dioxide
- Urea
Several hormones like HCG, HPL estrogen, and progesterone are produced by ______.
hCG is secreted by ______
Assertion: Functional ADA cDNA genes must be inserted in the lymphocytes at the early embryonic stage.
Reason: Cells in the embryonic stage are mortal, differentiated and easy to manipulate.
Match the columns I and II with reference to weeks of pregnancy and the development of a human embryo. Select the correct option from the choices given below:
| Column I | Column II | ||
| I. | 8 weeks | (P) | Limbs and external genital organs |
| II. | 12 weeks | (Q) | Limbs and digits develop. |
| III. | 20 weeks | (R) | Body hair develops. |
| IV. | 24 weeks | (S) | Eyelids separate. |
