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प्रश्न
Which of the following hormones is not secreted by human placenta?
पर्याय
LH
Progesterone
Estrogens
hCG
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उत्तर
LH
Explanation:
The placenta secretes hCG, estrogens, and progesterone, but LH is secreted by the anterior pituitary gland, not the placenta.
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संबंधित प्रश्न
Choose the correct options of the following question:
Eyelids in human foetus separate in :
Which extra-embryonic membrane in humans prevents desiccation of the embryo inside the uterus?
Which of the following hormones is not a secretory product of human placenta?
Urine test during pregnancy determines the presence of ______.
In the development of the human body, the ectoderm is responsible for the formation of ______.
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
Read the following and answer from given below:
Cleavage is the series of rapid mitotic divisions in the zygote and forms blastula. The 2, 4, 8, 16 daughter cells are called blastomeres. An embryo with 64 blastomeres is known as a blastocyst and has a blastocoel cavity. Blastocyst gets implanted in the uterine wall and leads to preganancy.
The solid mass of cells with 16 blastomeres is called ______
Read the following and answer from given below:
Cleavage is the series of rapid mitotic divisions in the zygote and forms blastula. The 2, 4, 8, 16 daughter cells are called blastomeres. An embryo with 64 blastomeres is known as a blastocyst and has a blastocoel cavity. Blastocyst gets implanted in the uterine wall and leads to pregnancy.
The correct sequence of various structures formed during embryonic development is ______
The secondary sexual characters develop in females because:
Placenta is
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.
Draw a diagram showing human foetus within the uterus and label any four, parts in it.
Explain the phases in embryonic development from the morula stage till the establishment of pregnancy in a human female.
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. |
The diagram given below represents a specific stage of human embryonic development. Identify the stage.
