Q: heredity and the environment have on prenatal development
A: Prenatal development Development of embryo and fetus before the birth is called prenatal…
Q: At which embryonic event would one be able to first distinguish a diploblastic embryo from a…
A: Answer: In reproduction process after the fertilization of female egg cell with sperm male cell…
Q: Which structures develop from the neural tube and somites?
A: the structures that develop from the neural tube and somites are :
Q: In a developing chicken embryo, what mesoderm lines the amniotic cavity?
A: The amnion, chorion, yolk sac, and allantois are the four extraembryonic membranes found in amniotes…
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: 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: What is yolk? What is its role in fertilization and development?
A: The development of organisms depends on the supply of resources. In embryo development nutrition of…
Q: What is the role of RhoA gene in the development of the Neural crest and neural connectivity?
A: What is the role of RhoA gene in the development of the Neural crest and neural connectivity?…
Q: elaborate on the relationships between the three germ layers in forming the mouth and facial…
A: The three main layer of body parts are ectoderm ,mesoderm and endoderm . We know that mouth is…
Q: How do the somites, intermediate mesoderm, and lateral plate mesoderm contribute to embryonic…
A: The early stages in the case of embryonic development start with fertilization. The fertilization…
Q: Bird and Mammalian Development. How are they similar and how are they different. Know A-P, D-V and…
A: Mammals undergo holoblastic rotational cleavage, characterized by a slow rate of division, a unique…
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: How does the oocyte nucleus move during oogenesis?
A: Oogenesis: Otherwise called as ovogenesis. This is a process that happens during the embryonic…
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: How the sympathetic division leads to ejaculation?
A: Ejaculation of semen from the penis is controlled by the sympathetic nervous system. Ejaculation is…
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: In a developing Chicken embryo, what is the fate of the postanal gut?
A: Postanal gut is the the extreme end of the alimentary canal.
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: 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: 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: Which of the following is used to induce ventral patterning of the neural tube?
A: Neural patterning is a process during which cells in developing nervous system acquires district…
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: What is the role of Msx gene family in the development of the Neural crest and neural connectivity?
A: Msx proteins play a key role in craniofacial, limb, and nervous system development. In vitro and in…
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: sulcus limita
A: 1. The advancement of the trigeminal engine core in the chick incipient organism was concentrated on…
Q: At what level of the neural tube do you find the anteriormost somite?
A: Introduction: The formation of somites along the length of the early embryo is referred to as…
Q: Which of the following do the neural crest cells give rise to?
A: Answer: NEURAL CREST CELLS = These are the temporarily cells in groups which are present 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: What is developing
A: In simple terms developing means to grow. In biology, the word developing refers to all the changing…
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: Discuss what will happen if the neural tube fails to close. What are the causes of its failure
A: Answer : The Neural tube will become an infant = spinal cord, brain, and cranium. Neural tube defect…
Q: how can brain cancer affect birth? How does brain cancer affect fetal development?
A: Introduction:- Brain cancer in a female are very rare to occur during pregnancy. These mostly occur…
Q: What result would Jost have obtained if female development alsorequired a signal from the gonad?
A: Endocrine system is a regulatory system of ductless glands that secrete chemical messengers called…
Q: What is the first appearance of embryonic callus?
A: Callus is defined as an unorganized tissue mass growing on solid substrate. Callus forms naturally…
Q: What is the corpus callosum? How does it differ between males & females?
A: The brain is the control centre for all the activities of the body. It is part of the central…
Q: Similarities of neuralation and organogenesis
A: Neurulation: It refers to the folding process in vertebrate embryos which includes the…
Q: ans develop from the neural tube and neural crest
A:
Q: From what structure does the corpus luteum originate?a. uterine corpusb. dominant folliclec.…
A: A corpus luteum refers to the composition of the cells that produce hormone progesterone. The corpus…
Q: Discuss, Why is the neural crest sometimes thought of as the fourth germ layer of the body?
A: Often organisms develop from a single cell called the zygote. In developmental biology, each…
Q: What are the four initialstages of the embryonicdevelopment?
A: Answer: Introduction: Embryonic development is also known as embryogenesis, is the growth of an…
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: Can you explain oogenesis and the folllicular developments?
A: Oogenesis is the formation of the ovum in the female members of the mammals. It starts before birth,…
Q: How amount and distribution of yolk influence gastrulation
A: Gastrulation is a phase early in the embryonic development. During gastrulation, a single-layered…
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: 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…
At what level of the neural tube do you find the anteriormost somite?
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Solved in 3 steps
- What happens if the neural tube fails to close? What causes its failure to close?During which trimester does the cerebrum develop convolutions? When do the limb buds begin to differentiate?Describe the development of the neural tube and namethe embryonic pouches and the adult brain structuresthat they become.
