The inner cell mass of the blastocyst is destined to become the _____

Q: What are the two types of embryonic folding?

A: In embryonic folding, the flat trilaminar disk turns into a lot of round shape embryos due to the…

Q: How many days does it normally take from the fertilisation of the egg up to birth of the baby?

A: The normal human gestation period is from thirty-seven weeks to forty-two weeks or 259 days to 293…

Q: Where does fertilisation occur in human beings?

A: Fertilization is the process by which occurs when the male and the female gametes fuse together to…

Q: Explain the Human embryo at beginning of fifth week ?

A: The time between conception and birth of a baby is called the gestation period. A normal gestation…

Q: What happens if the fallopian tubes are partially blocked and the ovulated eggs are prevented from…

A: The fallopian tubes are two thin tubes located on each side of the uterus. It is the site of…

Q: Describe the formation and function of the placenta?

A: When a women gets pregnant, the fetus develops inside the mother. There is a connecting link between…

Q: Chorionic villi develop from:- a. the zona pellucida. b. the endometrium. c. the…

A: Chorionic Villi sprout from the chorion after their rapid proliferation in order to give a maximum…

Q: What technology would enable a fetus born in the fourth month to survive in a laboratory setting?…

A: First of all, it is nearly impossible that four months (12 or 13 weeks) fetus can survive outside…

Q: What is organogenesis, and why is this concept important to the process of development?

A: Question - What is organogenesis , and why is this concept important to the process of development ?…

Q: How are the development events, which you have observed to occur in the testis and ovary,…

A: The initial processes of gonads development are essentially similar in both sexes consisting of…

Q: Why does only one sperm fertilize the egg, and why is this important?

A: Fertilization is the process in which gametes (an egg and sperm) fuse to form a zygote. The egg and…

Q: What are extraembryonicmembranes?

A: The embryology is the study of the formation and development of embryonic structures right from the…

Q: Is there a exchange of cells between the mother and the fetus through the placenta?

A: We have to explain whether there is an exchange of cells taking place through placenta.

Q: If identical human twins develop from separate placentas, when must the embryo have separated? When…

A: Reproduction is the biological process through which the new individual organism is produced from…

Q: Which gene is responsible for the development of the gonads into testes?

A: Introduction Chromosomes are classified into two types: Autosomes and Allosomes/Sex chromosomes. The…

Q: What is the major function of the Placenta?

A: The placenta is an organ that develops in uterus during pregnancy. The placenta is the interface…

Q: What is the function of the placenta?

A: Placenta is formed after implantation of the embryo has occurred on the uterine wall. It is a…

Q: Explain the extraembryonic membrane ?

A: The extraembryonic membrane is an important part of embryo development. Hence, it is crucial to have…

Q: What determines whether an embryo will develop into a male or a female?

A: The process of fertilization is the union of male and female gametes. It results in the formation of…

Q: How is an egg (oocyte) prepared during oogenesis for fertilization? Why is preparation essential to…

A: Oogenesis is defined as the process by which the female sex cells or ova or egg cells are produced.…

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: What is oogenesis? Give a brief account of oogenesis.

A: The female reproductive organs comprise primary sex organs (ovaries) as well as accessory sex…

Q: After fertilization a developing embryos goes through several changes. At about 2-3 days, what is…

A: During fertilization the haploid gametes, that is, sperm from a male and secondary oocyte from…

Q: What is the purpose of the placenta? Which part of the blastocyst eventually becomes the fetal…

A: Introduction  An organ that grows in the uterus during pregnancy is the placenta. A developing…

Q: How does the fertilized egg give rise to the adult body?

A: Introduction  Life starts from single cell called Zygote. Zygote is the single diploid cell resulted…

Q: Implantation of a blastocyst does not always happen.  Approximately how many days after…

A: Fertilization of the secondary oocyte in the oviduct forms zygote which in turn divides by cleavage.…

Q: What is this condition that results if the fertilized egg fails to descend down to the uterus?

A: Reproduction is the process by which an organism creates more of its own progeny. Reproduction is…

Q: How do we develop from a single fertilized egg cell?

A: Introduction:- Fertilization is the process of haploid gametes fusing together to generate a diploid…

Q: Where oogenesis does takes place. Describe the stages of this process?

A: Diagrammatic representation of oogenesis: -

Q: Why is fetal Hb essential for the survival of placental animals?

A: Hemoglobin is an oxygen transport protein in mammals. It is made up of four sub-units. Adult…

Q: Is an embryo a life?

A: Reproduction is a process through which an organism produces organisms of similar kinds. It is of…

Q: What is the technical term for the fertilized egg?

A: The process of fusion of gametes from male and female parents is called fertilization. The sperm is…

Q: Describe the structure and functions of the four extraembryonic membranes

A: The layers inside the egg around the embryo are called extraembryonic membranes, and they nourish…

Q: What specifically will happen if multiple sperm were able to fertilize one egg during fertilization?

A: It can lead to  polyspermy. When the sperm fuses with the egg, it triggers the release of calcium…

Q: List and give the functions of the 4 major extraembryonic fetal membrane

A: The extraembryonic membrane are those extra embryonic structure which are forward from extra…

Q: What is external fertilisation?

A: Fertilization is the process by which male and female gametes are fused together, initiating the…

Q: Seeing that the placenta acts as a barrier protecting the baby from harmful substances the mother…

A: Placenta is the ultimate connection between mother and the foetus.All the nutrients and other…

Q: What happens in the process of fertilization in animals and humans?

A: The cells of the biological unit of life. the cells comprise tissues which collectively forms an…

Q: What is the developmental fate of the inner cell mass of the blastocyst?

A: A diploid zygote is formed by the union of a haploid egg cell and a haploid sperm cell. The zygote…

Q: what is amniocentesis?

A: Prenatal genetic tests are conducted before the birth to detect any genetic disorder. It helps to…

Q: What organ does the somatic hypomere originating from the general mesoderm give rise to?    a.…

A: Somatic hypomere is found to give rise to skeleton of the body, limbs and bony girdles. The mesoderm…

Q: During which of the 3 stages of oogenesis does the oocyte nucleus move?

A: Oogenesis- Oogenesis is the process of formation of female gametes. This process begins inside the…

Q: Describe the roles of the four extraembryonic membranes.

A: Introduction :- One of the membranes that aid in the development of the embryo is the extraembryonic…