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Glycoprotein hormones, hCG and eCG, are synthesized in women and mares respectively, during pregnancy. Both of these chorionic gonadotropin hormones
  • a)
    have only LH-like activity in their respective species
  • b)
    have only FSH-like activity in other species
  • c)
    are biologically inactive in other species
  • d)
    are routinely employed to promote final stages of follicular maturation, ovulation and to treat
    infertility in women.
Correct answer is option 'A'. Can you explain this answer?
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Glycoprotein hormones, hCG and eCG, are synthesized in women and mares...
Glycoprotein hormones hCG and eCG


Introduction

Glycoprotein hormones, such as human chorionic gonadotropin (hCG) and equine chorionic gonadotropin (eCG), play crucial roles during pregnancy in women and mares, respectively. These hormones are synthesized by the placenta and exhibit specific activities in their respective species.

Characteristics of hCG and eCG

Both hCG and eCG are glycoprotein hormones that share structural similarities and belong to the same family of hormones. However, they have distinct physiological functions and activities.

Activity of hCG in Women

In women, hCG has LH (luteinizing hormone)-like activity. LH is responsible for the final stages of follicular maturation, ovulation, and luteinization in the menstrual cycle. During pregnancy, hCG is produced by the placenta and maintains the corpus luteum, which produces progesterone to support the pregnancy. This LH-like activity of hCG is crucial for the maintenance of pregnancy and the development of the fetus.

Activity of eCG in Mares

In mares, eCG has primarily FSH (follicle-stimulating hormone)-like activity. FSH stimulates the development and growth of ovarian follicles in the mare's reproductive system. During pregnancy, eCG is produced by the endometrial cups, which develop on the surface of the placenta in mares. The FSH-like activity of eCG promotes follicular development and maturation, leading to the production of estrogen and the formation of secondary corpora lutea.

Activity of hCG and eCG in Other Species

While hCG and eCG have specific activities in women and mares, respectively, they do not have the same activity in other species. In other species, including non-pregnant women and mares, these hormones may have limited or no biological activity. Therefore, they are considered species-specific hormones.

Applications in Women

In women, hCG is routinely employed in assisted reproductive technologies (ART) to promote final stages of follicular maturation, induce ovulation, and support pregnancy. It is also used in the treatment of infertility, as it mimics the action of LH and can stimulate the release of mature eggs from the ovaries.

Conclusion

Glycoprotein hormones, hCG and eCG, have distinct activities in women and mares, respectively, during pregnancy. While hCG exhibits LH-like activity in women, eCG primarily acts as an FSH-like hormone in mares. These hormones play essential roles in the reproductive processes of their respective species and have clinical applications in the field of reproductive medicine.
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Glycoprotein hormones, hCG and eCG, are synthesized in women and mares respectively, during pregnancy. Both of these chorionic gonadotropin hormonesa)have only LH-like activity in their respective speciesb)have only FSH-like activity in other speciesc)are biologically inactive in other speciesd)are routinely employed to promote final stages of follicular maturation, ovulation and to treatinfertility in women.Correct answer is option 'A'. Can you explain this answer?
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Glycoprotein hormones, hCG and eCG, are synthesized in women and mares respectively, during pregnancy. Both of these chorionic gonadotropin hormonesa)have only LH-like activity in their respective speciesb)have only FSH-like activity in other speciesc)are biologically inactive in other speciesd)are routinely employed to promote final stages of follicular maturation, ovulation and to treatinfertility in women.Correct answer is option 'A'. Can you explain this answer? for GATE 2024 is part of GATE preparation. The Question and answers have been prepared according to the GATE exam syllabus. Information about Glycoprotein hormones, hCG and eCG, are synthesized in women and mares respectively, during pregnancy. Both of these chorionic gonadotropin hormonesa)have only LH-like activity in their respective speciesb)have only FSH-like activity in other speciesc)are biologically inactive in other speciesd)are routinely employed to promote final stages of follicular maturation, ovulation and to treatinfertility in women.Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for GATE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Glycoprotein hormones, hCG and eCG, are synthesized in women and mares respectively, during pregnancy. Both of these chorionic gonadotropin hormonesa)have only LH-like activity in their respective speciesb)have only FSH-like activity in other speciesc)are biologically inactive in other speciesd)are routinely employed to promote final stages of follicular maturation, ovulation and to treatinfertility in women.Correct answer is option 'A'. Can you explain this answer?.
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