2n Prenatal 7 2n 6 8 Ovulation 10 in + Secondary oocyte Fertilization n 3 4 2n 2.

Q: Identify the extraembryonic membranes and provide afunction for each.

A: Extraembryonic membranes are the membranes that assist in the development of embryo. They are…

Q: Describe the process of oogenesis

A: Sexually reproducing organisms have a reproductive system consisting of primary sex organs called…

Q: Name the three primary germ layers and explain how they develop in the embryonic disc?

A: Once the implantation has successfully taken place, the cells start to divide and develop into an…

Q: define organogenesis and indicate the important roles of the three primary germ layers in this…

A: Gastrulation is the process of early embryonic development where blastula transforms to form three…

Q: Define secondary oocyte

A: A gametocyte oocyte, or seldom oocyte, is a feminine cell or cell concerned with a replica. In…

Q: Define segmentation, and give two examples of segmented structures in the embryo.

A: The science that investigates the processes by which multicellular organisms like plants and animals…

Q: Describe two ways that an oocyte avoids polyspermy.

A: The fertilization of the egg takes place by the fusion of the sperm and the ovum. Sperm is produced…

Q: Name the three germ layers, and identify several types of structures thatarise from each.

A: Ans: Germ layers: The layers which are formed during the early stage of embryonic development are…

Q: erm layers and the principle structures the germ layers give rise to in the adult.

A: After many cleavages, the zygote blastulas produce the blastula. The gastrula develops through…

Q: Outline the process of oogenesis.

A: The process of oogenesis can be defined as the process of production of the mature female gamete,…

Q: Name the extraembryonic membranes and mention their functions.

A: Reproductive system is a body system which play important role in formation of sex cells , hormones…

Q: Identify the labeled structures in the embryo shown:

A: Archenteron is a structure which is observed in a developing embryo in the Gastrulation stage. It is…

Q: Identify the nature of the three primary germ layers.

A: During embryonic development, the zygote, which is pluripotent stem cells, divides into the three…

Q: Describe the formation of the primary germ layers

A: A germ layer can be described as the collection of cells in embryos that communicate with one…

Q: What is the difference between a primary and secondary oocyte

A: An oocyte is a developing egg. Within a follicle, oocytes mature into mature oocytes. The outer…

Q: Describe the functions performed by the placenta for the developing embryo, and in each case,…

A: Human females give birth to live offspring. The fetus is attached to the uterus by an umbilical…

Q: Name the structure formed by the villi of the embryo and the uterus of the mother.

A: The uterus or womb is a major female hormone-responsive secondary sex organ of the reproductive…

Q: In the adult Primordial Germ Cell, How many artia are present at thid stage? Discuss.

A: By the fourth week of pregnancy, primordial germ cells are seen near the allantois of the embryonic…

Q: What would happen if a blastocyst implanted into the functional layer of the endometrium and a…

A: It is at the blastocyst stage of development that an embryo would normally move out of the fallopian…

Q: What is the difference between the anterior and posterior determinant for the oocyte?

A: The difference in the anterior and posterior parts of an embryo is due to the difference between the…

Q: Name the four extra-embryonic membranes.

A: In living organisms, the formation and the development of all the cells and tissues got initiated by…

Q: what are the principal structures each germ layer gives rise to in the adult?

A: The zygote is a cell formed by the union sex cell of the male (sperm) and sex cell of the female…

Q: Define primary germ layers

A: Embryogenesis, also termed embryonic development is the development of the embryo of a plant or an…