How does a simple tube become the complex structures of the brain and spinal cord that generate both thought and movement?

Q: What is external cephalic version?

A: External cephalic is a type of external rotation of fetus in utero.The physician rotates the fetus…

Q: What are limb buds?

A: Vertebrates have three basic germ lines in the developing embryo. The outermost ectoderm, the middle…

Q: What are some other vestigial organs in humans?

A: Evolution is the process of slow and gradual change over a period of time. Many theories are given…

Q: What cells are seen in the mucous connective tissue of the umbilical cord

A: The umbilical cord is a tube that connects you to your baby during pregnancy. It has three blood…

Q: What is the embryonic sac?Which are the cells that formthe embryonic sac? What aretheir ploidies?

A: The angiosperms are vascular plants that produce flowers and fruits, and they belong to the phylum…

Q: What is the probable function of the moving cilia of Vorticella?

A: Vorticella is a protozoan and it belongs to the Ciliophora phylum. These are sessile organisms and…

Q: Which embryonic germ layer lines the outer surface of the embryo

A: An embryo is the early stage of human development in which organs form critical body structures.

Q: A high concentration of which protein stimulates the development of anterior structures? a. Dorsal…

A: Dorsal protein concentration differentiates dorsal and ventral axis.

Q: What is an amnion?

A: The question asks about the amnion.

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: HUMAN DEVELOPMENT What organs were produced at the start of development? Towards the end of…

A: Human development  allows the human beings to form specialised structures like organs during their…

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 is the cell divisionduring the first stage of theembryonic developmentcalled? How is this…

A: The process by which a parent cell divides into two identical daughter cells, is called Cell…

Q: How does a fertilized egg give rise to an organism with highly differentiated cells that are…

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

Q: What are embryonic stem (ES) cells ?

A: Stem cells are cells that are undifferentiated or "blank." This ensures they have the potential to…

Q: How does the neural crest originate? What cells or tissues arise from it?

A: The neural crest arise at the time of embryonic development and these cells come by pinching off…

Q: What is recapitulation theory

A: In biology the evolution can be outlined as the changes that occur in the characteristics of a…

Q: What do you mean by vestigial organs? Give some examples.

A: Evolution involves “descent with modifications” which results in the alteration of characteristics…

Q: What is the structurethrough which the neuralimpulse is transmitted fromone cell to another? What…

A: Neural impulse is the electrical signal which results in the movement of ions in and out across the…

Q: What determines the antero-posterior polarity in vertebrate embryos?

A: The Anterior-Posterior (AP) axis is an embryonic axis that helps the animals to travel…

Q: Which of the following is an embryonic tissue found in animals?

A:

Q: What is colustrum? What is its significance to new born baby?

A: Hormones are the signaling molecules that play important roles to prepare the body for fertilization…

Q: Why are the ectoderm and endoderm called the “germ” layer?

A: Gastrulation is the process of the embryonic development in which cell  movements establish the…

Q: Which embryologic tissue develops into the spinal cord (mesoderm/ectoderm/endoderm)?

A: The formation of the embryo is one of the defining features of sexual reproduction. This embryo…

Q: Make a TABLE (containing the summary) of the stages of emrbyonic development with each of the…

A: Embryogenesis is a process of development of the embryo from the zygote , the processes involved…

Q: Why is there the need for two separate mechanisms to complete the neural tube?

A: Neurulation is the process of the formation of a neural tube. This occurs by transforming the neural…

Q: How is embryology different from developmental biology?

A: During their life cycles;most of the living organisms like plants and animals undergoes various…

Q: Ectodermal Derivatives of the Developing Chick Embryo   A. 33-hour Chick Embryo Transverse…

A: 1. Neural  is situated in the region of or on the same side of the body as the brain and spinal cord…

Q: How do changes in development create new body forms?

A: Embryonic development is the development of plant or animal embryos, which is otherwise known as…

Q: Explain how cephalization influence the concentration of the sense organs at the front of the body

A: Cephalization is an evolutionary trend in which the nervous system's commands are concentrated in…

Q: What is embryological development?

A: Embryo is defined as the early developmental stage of an animal. It is an embryo while it is in the…

Q: At what level of the neural tube do you find the anteriormost somite?

A: Introduction :- The neural tube acts as the embryonic brain and spinal cord . And it forms the Early…

Q: What initiates the directionality of neural tube closure?

A: In humans, the closure of the neural tube generally occurs by the pregnancy 4th week. The tube…

Q: How is the yolk formed in terms of embryogenesis

A: Embryogenesis is the course of improvement of an undeveloped embryo from the zygote. In…

Q: How can a tissue be developmentally cut up into precisely sized segments? How can snakes have some…

A: Snakes, chickens. fish, as well as humans, have all begun their life in a similar way. During the…

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 would likely occur if cilia were paralyzed at the time of ovulation?

A: Ovulation is the process of release of ovum from the ovary. It occurs when the FSH and LH both…

Q: What is the function of: -Centroacinar Duct -Intercalated Duct -Interlobular Duct

A: Centroacinar Duct- they represent  extension of the intercalated duct.  They secret aqueous…

Q: What are the organs upper end and lower ends of oesophagus connected to?

A: Oesophagus ( also sometimes mentioned as Esophagus) is a cylindrical tube-like structure,…

Q: Why scientist are not allowed to culture headless baby. What makes it immoral?

A: Culturing microorganisms is generally done with the help of a parent strain and a rich media that…

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: Where does the embryo get oxygen and release carbon dioxide? Hint: Where do vascular systems come…

A: From the given question, the given embryo is assumed to be bird’s embryo.The early stage of the…

Q: How can matter alone construct itself into the organized tissues of the embryo?

A: The embryo is the development stage in multicellular organisms. The development of the embryo begins…

Q: What anatomical structures provide protection to thekidney?

A: The kidneys are two bean-shaped organs. The two kidneys are the chief excretory organs of the human…

Q: How do cells communicate, interact, and understand their place in the embryo?

A: Cells: In the human body, cells play a major role which provides the structure, intake the nutrients…