What is the fate of the inner cell mass? Which of the structures produces human chorionic gonodotropin (HCG)? What is the function of HCG? What would happen to the implanted blastocyst if HCG were not secreted?

Q: Retinoic acid is the main component of Tretinoin, an anti-cancer chemotherapy drug. Retinoic acid is…

A: Introduction :- Teratogens are the chemical compounds or agents which can cause abnormalities in the…

Q: What is the main stimulus for the secretory phase of the endometrium?

A: Endometrium is the inner lining of uterus made of columnar epithelial cells. Its part of female…

Q: Some pregnant women experience difficulty with deep breathing during the last trimester. Can you…

A: The human pregnancy is divided into three trimesters. During the last trimester, the baby is…

Q: Why is a second polar body expelled after fertilisation?   a)   To remove excess cytoplasm   b)…

A: The second polar body is a small, non-functional cell that is produced during oogenesis after the…

Q: During the first few weeks of pregnancy, chorionic gonadotropin substitutes for luteinizing hormone…

A: The human gonadotropin hormone is a chemical messenger that plays a crucial role in pregnancy. It…

Q: What route would oxygen in the mother’s blood follow to arrive at abody cell of the fetus?

A: In order to transport the oxygen to the fetus from the mother to the fetus the structure called…

Q: What's the process of gastrulation in humans, how the embryo forms the three germ layers, and which…

A: The inner cell mass which is known as Blastula is now grown into a cell mass known  Gastrula and…

Q: Gastrulation does NOT Select one: a. involve the formation of germ layers b. consist of endoderm,…

A: Introduction: When the new offspring develops from the existing organisms, the process is referred…

Q: What immediate effect does the SRY gene have on a developing fetus?   A) It directs the gonads to…

A: The sex of the fetus is determined before fertilization which depends on the presence of a Y…

Q: Compare and contrast the structures of the zygote, morula, and blastocyst.

A: After the egg cell's fusion with a sperm cell (that is, after fertilization), the diploid cell is…

Q: Identify two differences between a zygote and blastocyst

A: The fusion of male and female gametes is termed as fertilization. The process of fertilization takes…

Q: Are the extraembryonicmembranes the same in allvertebrates?

A: An embryo is an early phase development for an unborn baby. A small fertilized egg divides and grows…

Q: What would happen if human chorionic gonadotropin levels did not rise adequately during pregnancy?

A: Hormones are chemical messengers secreted by the glands present in the body. They are responsible…

Q: Sometimes a sperm cell fertilizes a polar body rather than a secondary oocyte. An embryo does not…

A: The last stage oogenesis results in the formation of two types of haploid cells; a secondary oocyte…

Q: What means to retain the ability to become any cell type—including germ-line cells and gametes—when…

A: Stem cells are the cells that are capable to convert to different cell types. These are present in…