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प्रश्न
Choose the correct options of the following question:
Eyelids in human foetus separate in :
पर्याय
14 weeks
16 weeks
24 weeks
40 weeks
उत्तर
24 weeks
APPEARS IN
संबंधित प्रश्न
(a) Arrange the following hormones in sequence of their secretion in a pregnant woman.
(b) Mention their source and the function they perform :
hcG, LH, FSH, Relaxin
Explain Rh factor incompatibility during pregnancy.
The early stage human embryo distinctly possesses ______.
Mark the odd one.
Which of the following statements are correct with respect to hormones secreted by the placenta?
- The placenta secretes relaxin during the later stage of pregnancy.
- The placenta secretes a high amount of FSH during pregnancy.
- The placenta secretes relaxin during the initial stage of pregnancy.
- The placenta secretes hCG and hPL during pregnancy.
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
Which of the following is not a function of the placenta?
Extra-embryonic membranes provide:
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.
The diagram given below shows the early embryonic stages of fish, reptiles, birds and humans. Though adult reptiles, birds and mammals breathe air, their embryos possess gills. How does this fact support evolution?
