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

Q: Which process involves the shaping of the embryo and cell migration?

A: Developmental biology is the branch of science that includes the studies of a diversity of…

Q: Y Why is fetal Hb essential for the survival ofplacental animals?

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

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: What happens to placenta after the birth of the baby?

A: The process of physical expulsion of the fetus and placenta from the uterus is called labor or…

Q: Explain how the structure of the placenta prevents mixing of fetal and maternal blood while allowing…

A: -First to understand placenta .  Placenta -- It is composed of fetal part which includes the…

Q: Describe the structure of the placenta and the pathways for exchange between maternal and fetal…

A: The placenta is an organ that forms in the uterus during pregnancy and helps in the transport of…

Q: Why does theheterozygote have an advantage?

A: When an individual contains a dissimilar pair of alleles for the same gene, the condition is…

Q: Describe the function of the extraembryonic membranes.

A: It is situated outside the embryo and developed from the zygote but not part of the embryo Four…

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 is an ectopic pregnancy?

A: Ectopic pregnancies exist in around one out of every 50 conceptions, as per the statistics of the…

Q: What is embryos

A: Introduction  The life starts from single cell called Zygote. A zygote is formed by the fusion of…

Q: Which events make up the three stages of labor?

A: Events that make up the three stages of labor are : Active labor : when neck of cervix is dilated…

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: a) Give two types of germ layer and what do they become (b)Briefly describe why it is important the…

A: Germ layers: a. The three layers of tissues that become established during the early embryonic…

Q: How does a morula differ from a blastocyst?

A: Morula Vs Blastocyst:         Morula stay distinct from a blastocyst, in which a morula (3-4 days…

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: Where does the formation of germ cells and sperm takes place?

A: Developmental biology is that the branch of biology that deals with the study the processes by that…

Q: Which structure connects the embryo to the placenta?

A: Umbilical cord

Q: pig fetus  Describe how the developing fetus exchanges material during pregnancy.

A: The placenta is a membrane, which surrounds the developing fetus during pregnancy. It provides…

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: How does the risk of chromosomal abnormality in a child change with themother’s age?

A: Chromosomal anomaly, abnormality or aberration refers to the abnormality in the structure and number…

Q: Which structure helps to expel the baby during labor? a. myometrium b. cervix c. endometrium d.…

A: In human females, the gestation period is about 9 months and the baby is delivered after this period…

Q: Explain the extraembryonic membrane ?

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

Q: What factor contribute to the healthy development of infants/babies ? Provide details

A: Aside from physical appearance, newborns inherit a lot from their parents genetically, including eye…

Q: Explain the Embryonic Germ Layers ?

A: The layers of cells produced during the early phase of embryo development which gives rise to the…

Q: How is Deoxygenated blood carried from the fetus to the placenta?

A: A developed unborn mammalian child in the womb is the fetus. The interaction link that aids in…

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: Explain how is the age of the embryo and it's delivery date determined?

A: An embryo is the early stage of development of a multicellular living being. In common, in life…

Q: Do the mother and the fetus exchange cells through the placenta?

A: Introduction In this question we we will discuss whether the mother and the fetus exchange cells…

Q: Where does fertilization usually take place?

A: The reproductive system consists of two system namely male reproductive system and female…

Q: How is the yolk formed?

A: Cells are the basic structural and functional units of life. These are the building blocks that make…

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

A: Diagrammatic representation of oogenesis: -

Q: What happens during embryogenesis?

A: After the process of fertilization, the process of zygote development starts to form an embryo and…

Q: Endometrium function?

A: UTERUS It is a major female secondary sex organ of the reproductive system in humans and most other…

Q: What are the defferent mechanism the egg employed to ensure that only one sperm cell will fertilize…

A: Polyspermy is a fatal condition in which several sperm nucleus engage with the female nucleus.…

Q: How does the embryo get nourishment inside the mother’s body?

A: Embryo means the developing offspring from the time of approximately 2nd to 8th weeks after the…

Q: development of babies

A: Introduction:- Children grow and develop rapidly in their first five years across the four main…

Q: What is external fertilisation?

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

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 causes maternal inheritance?

A: Maternal inheritance is a form of inheritance in which traits of the progenies are maternal in…

Q: Explain the Formation of the extraembryonic membranes

A: An extraembryonic membrane is one of the membranes which assist in the development of the embryo. It…

Q: what is amniocentesis?

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

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: Why would the absence of a father affect the timing of puberty?

A: Puberty is defined as the stage when a child starts to grow sexually. During this stage, physical…