Describe the body wall of the 55-hour chick embryo.

Q: diagrams

A: A process in which embryo ties with the endometrial surface of uterus and invades the maternal…

Q: Name the process of attachment of developing embryo with the uterus.

A: An embryo is an early stage of development of a multicellular organism. The embryonic development in…

Q: Give the origins and functions of the chorion, amnion, allantois, and yolk sac.

A: The extraembryonic membrane can be defined as the type of membrane which helps in the development of…

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: Which structures develop from the neural tube and somites?

A: the structures that  develop from the neural tube and somites are :

Q: What are the major events that occur from fertilized egg to birth?

A: Fertilization is the process of fusion of the male gamete (sperm) with the female gamete (ovum) 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: 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: Describe how the human blastocyst gives rise to the embryo and its extraembryonic membranes.

A: The fusion of male and female gametes form a zygote during fertilization.

Q: How is the yolk sac formed?What is the function of theyolk sac?

A: Yolk sac is the membranous sac attached to the embryo. It is also known as umbilical vesicle.

Q: Describe the major events that transform a fertilized egg into an embryo?

A: BASIC INFORMATION  FERTILIZATION  It is the process of the fusion of the male as well as the female…

Q: Outline the postfertilization events that lead to formation of a blastocyst.

A: Reproduction is the phenomenon of producing offspring from the parent. The reproduction can be…

Q: Describe the fertilization process and how an egg prevents fertilization by more than one sperm?

A: The reproductive system of the body is one of the important systems of the human body which ensures…

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 the process of progressing from zygote to blastocyst

A: In human development many stages occur like the zygotic stage where sperm get to meet with female…

Q: Differentiate the primitive streak of the 24-hour from the primitive streak of the 18-hour

A: Primitive Streaks and its peculiar shape at various stages--- Primitive streak is very important…

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: Describe the major events in embryonic development

A: Introduction: Embryonic development is an 8-week process and has phases of development during which…

Q: Draw the H. nana egg and adult

A: H.nana or hymenolepiasis is caused by tape worm or cestode species. It is also called as dwarf tape…

Q: What are the cells producedin the first stage of theembryonic developmentcalled?

A: The process in which the embryo forms and develops is known as embryonic development.

Q: What are the properties of the multiple ovulution embryo sac?

A: MOET  approach involves the production of multiple ovulation embryo sac which contains flush of…

Q: Describe the events that occur following fertilization ofthe oocyte and the process of implantation…

A: The menstrual cycle of a woman repeats itself every 28 days and consists of four phases namely the…

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: What triggers activation of the egg?

A: The sperm of several species are attracted to the eggs of their own species by the process of…

Q: Explain the eccentric position of the early frog blastocoel. (min. 5 sentences)

A: A zygote is formed during the embryonic development that occurs when the egg is fertilized by a…

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 are the distinguishable parts of the 72-hour chick embryo? Give at least 5 parts and the adult…

A: Probably the best magical occurrence of nature is the change of the egg into the chick. A chick…

Q: What are the three germ layers formed during gas-trulation, and what are the principal structures…

A: Introduction :- Gastrulation is a process in which an embryo converts from a one-dimensional layer…

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: C. Explain the functions of the four layers found inside an amniotic egg.

A: Amniotic eggs are eggs that produce by mammals, birds, reptiles etc. The embryo development take…

Q: Describe the major developments during each trimester of human gestation.Describe the major…

A: Gestation is the time of advancement during the conveying of an embryo or fetus inside viviparous…

Q: What are the three germ layers formed during gastrulation?

A: Developmental Biology is the field of biology that studies the processes by which multicellular…

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: Name the process of embryo connecting with uterine wall of mother.

A: Embryonic development is the development of embryo from fertilised egg and its subsequent…

Q: In the 33 hr. chick embryo stage what structure/s would serve as a guide to approximately…

A: Auditory vesicles are distinct. Three pairs of arterial arches arise from the ventral aorta. Somites…

Q: Describe the path of a mature egg that is released and fertilized.

A: An egg is a female gamete and is released by the ovaries. At its release, it is at secondary oocyte…

Q: List and describe some developmental anomalies associated with gastrulation.

A: The term gastrulation basically address the early development of embryo from 1-D layer of epithelial…

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: 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: How is and egg (oocyte) prepared during oogensis for fertilization? Why is preparation essential to…

A: The process of formation of gametes is known as gametogenesis. In females, oogenesis is a process of…

Q: Name the layer of cells that forms the outer wall of blastocyst.

A: Blastocyst is a developmental stage of the the embryo to form an foetus. This developmental form is…

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: How does the sperm reach upto egg and how does it enter into the egg?

A: Fertilization is the process in which a sperm and egg are fused together in the uterine tube of the…

Q: What tissues and organs arise from the three germ layers in embryonic development?

A: In developmental biology, various stages are involved for the development of a foetus. Gastrulation…

Q: Describe each stage of the development from Fertilized egg to blastocyst stage

A: Fertilization is a crucial step in the process of sexual reproduction. The zygote is formed when the…

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: Name two organ-system derivatives of each of the three germ layers.

A: A germ layer is a gathering of cells in an undeveloped organism that collaborate with one another as…