Q: What parts are persistent throughout the development of the embryo? Why are these present in all the…
A: Answer
Q: 5. Do other organs or organ systems develop at the same time? Are they related to the function of…
A: Question number 5 is incomplete, Hence cannot be answered. Answer 6: If the nucleus of a non-motile…
Q: Amniocentesis and genetic screening reveal that a fetus carries a defective L1-CAM gene. What…
A: Amniocentesis and prenatal testing are the diagnostic tests performed before the child's birth. This…
Q: What generates the first differences among cells in an early embryo? And what controls the…
A: Embryonic differentiation refers to the process in which embryonic cells possess specialization and…
Q: What is the purpose of cleavage during embryonic development? To allow the embryo to get larger To…
A: Cleavage is act of splitting or dividing of cell. Cells divide without increase in mass.
Q: What structural and biochemical changes do the spermatid undergo during spermiogenesis? How do these…
A: introduction:-Spermatogenesis is the formation of sperm cells. To produce spermatozoa, rounded…
Q: Question 7. When does differentiation occur in egg development?
A: Cellular differentiation is a multi-step process involving the coordinated regulation of genes by a…
Q: What is the source of different cytoplasmic determinants present in the embryo after fertilization?…
A: Some post-embryonic cells also include cytoplasmic determinants, which cause cytoplasmic asymmetries…
Q: There are 5 primary oocytes that will undergo cell division, How many functional egg cells will be…
A: The journey in short of an oocyte is as follows- the egg follicle is activated, the egg grows and…
Q: What is the significance of cleavage during the early stages of development?
A: The cleavage is the division of cells in the early stage of an organism. This implies that with each…
Q: Why does testing for hCG (human chorionic gonadotropin)work as a pregnancy test early in pregnancy…
A: The hCG refers to the Human chorionic gonadotropin is a hormone produced by surrounding cells of a…
Q: 25. Which structure in development is composed of embryonic stem cells? 26. At which stage in…
A: After fertilization, the zygote and their associated membranes, which together called conceptus will…
Q: -3. The figure below shows cleavage stages in an embryo. From studying the photographs, what can you…
A: On fertilization, the zygote undergoes cleavage. That is the process of development of multicellular…
Q: What fertilized egg; enters 2 week period of rapid cell division?
A: Male and female gametes are called sperm and egg cells, respectively. For reproduction to occur, a…
Q: Article on early testing of chromosomal condition in pregnancy.
A: Our unique genetic material called genes are conveyed by the chromosomes . Our bodies are comprised…
Q: causes a deletion to occur during early fetal development.? is it an alteration
A: If there is deletion or Insertion of one or a few nucleotides in the DNA molecule, then it will…
Q: Why are blastomeres in the pigmented part of the egg smaller and more numerous than in the…
A: The other terms associated with developmental biology include embryogenesis or embryology. This…
Q: What is meant by the term “activation” in embryology?
A: Embryology is a branch of biology. It is the study of formation, growth as well as the development…
Q: 1. Zygote 2. Morula 3. Oocyte 4. Fertilization 5. Clevage 6. Blastocyte The order in which…
A: The stages are as follows : Oocyte Fertilization zygote cleavage Morula Blastocye
Q: The individual cells are called blastomeres. Are all of the blastomeres the same size in these early…
A: After fertilisation of sperm & ovum, zygote s produced. This zygote then undergo various…
Q: How is cell death a normal part of development?
A: Answer: Introduction: Cell death is necessary for the normal development of eukaryotic organisms and…
Q: Which cells are harvested from the early embryo for stem cell research? O enucleated cells umbilical…
A: 23 Answer is all blastocyst cells
Q: In a 24-year-old man, which of the following cell types are most likely to be in the process of…
A: Testis is the part of male reproductive system. It is found in the scrotum 2gich provides the 2°C…
Q: give the Significance of the ff Cleavage to embryogenesis CAMs and Junctional…
A: * cleavage means division of cells in embryo . * The cells formes as result of cleavage are…
Q: Fetal development takes place in a relatively short amount of time. In just nine months, a…
A: The gestation period of fetal growth in 32 - 40 weeks (9-10 months). The entire gestation period is…
Q: What parts are persistent throughout the development of the embryo? Why are these present in all the…
A: The fitness of the organism depends on the early stages of embryonic development, which include…
Q: What are the significance of ORGATOGENESIS. State whether it is a normal developmental phenomena or…
A: Answer: Introduction: Organogenesis is the mechanism in the three germ tissue layers of the embryo,…
Q: You are the product of all the genetic information contained in the fertilized egg cell at the…
A: Sexual reproduction- In this fusion of male and female gamete occurs. In this fusion of two gametes…
Q: What do you mean by implantation and how does it occur?
A: Implantation Implantation refers to a journey of the fertilized egg to travel to the uterus and…
Q: How is the child affected if it has grown from the zygote formed by an XX-egg fertilized by…
A: Zygote is also known as a fertilized egg because it is formed by the process of fertilization in…
Q: what is celluar cleavage thats occur in the early stages of development?
A: The development of an embryo is characterized by the process of cell division and cellular…
Q: What is the significancw of cleavage in early development? Discuss.
A: The repeated mitotic divisons of the fertilized egg (zygote) is called cleavage. It is preceeded by…
Q: 11, The following is correct regarding embryonic development
A: Digestion is the process in which complex substances are broken down into simple substances.
Q: Why are the cell movements (i.e. invagination, involution, epiboly) important in proper development…
A: The study of embryo development is known as embryology. This covers the transformation of a…
Q: What is one of the ethical issues related to using embryonic stem cells? O A. Embryonic cells are…
A: Embryonic stem cells (ESCs) are collected from early-stage embryos i.e a group of cells that produce…
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: As Cleavage stage of embryo genesis proceeds, the developmental potential of the cells becomes…
A:
Q: Contrast determination and differentiation in development
A: The main difference between cell determination and cell differentiation is that the cell…
Q: How many somites are there in mouse? In chicks? In humans
A: In embryology, a somite is among a series of longitudinal blocklike sections into which the…
Q: what are the major events of embryo development? what are the major events of fetal development?
A: Embryo development as the name suggests the development or formation of the embryo. Embryo…
Q: What would happen if stem cells divided like spermatogonia? O There is a huge stock of stem cells in…
A: Spermatogenesis is the formation of the sperm from 2n cells to n cells. According to me the option…
Q: What is the difference between radial and spiral cleavage?
A: Cleavage is defined as the process in which division form the cells and eventually the new organism.…
Q: How long after ovulation does it take an embryo to develop? The resulting embryo may become the…
A: Fertilization is the fusion of haploid gametes, egg and sperm, to form the diploid zygote. Human…
Q: How many follicle cells will fit inside? Is there an abundance of yolk within the cytoplasm of the…
A: Oocyte It is an immature ovum or egg cell which is a female gametocyte or germ cell. It is involved…
Q: What other developmental hallmarks are often associated with spiral or radial cleavage?
A: Based on the directions and angles the cleavage furrow cuts, cleavage is of four types, namely,…
Q: You have ah Each cell may continue development, but only into a nor Each cell may develop into a…
A: Morula (Latin, morus: mulberry) is the first-class embryo composed of 16 cells (called blastomeres)…
Q: Why are enzymes very important in fertilization? What are their biochemical features and properties?
A: INTRODUCTION The enzymes that are important for fertilization are hyaluronidase and acrosin.
what kind of division can perform normal growth and development for the embryo & why?
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- There are 5 primary oocytes that will undergo cell division, How many functional egg cells will be viable for fertilization?There are 5 primary oocytes that will undergo cell division, How many functional secondary oocytes will be formed?Why do flexion and torsion events occur in the developing embryo?
- Can you explain: p53 and p63 genes, the relationship will have between the two genes being mutated, and the implications of ectodermal disorders such as Ectodermal dysplasia? Thanks!What generates the first differences among cells in an early embryo? And what controls the differentiation of all the various cell types as development proceeds?Why are the cell movements (i.e. invagination, involution, epiboly) important in proper development of the embryo?
- The 48-hr Chick Embryo Whole Mount (SEE IMAGE) Before you mount your slide on your microscope stage, take a good look at the morphology of the 48-hour embryo. Note the striking changes in morphology as compare, to the 33-hour embryo. There is a cephalic flexure or bending at the level of the midbrain. The head now lies on its left side. On the other hand dorsal side of the trunk is still turned up so the twisting of the embryo is noticeable. Verify these changes under the low power objective. Note the flexion and the torsion. In addition to the cranial/cephalic flexure there is also a cervical flexure at the level of the neck region. Very briefly go through the structures previously seen in the 33-hour chick. Observe the new structures appearing for the first time (Please visit the main website for viewing the whole mount of 33-hour and 48-hour chick embryo). Ectodermal Derivatives The prosencephalon is now divided into two regions: Telencephalon: This brain region is the anterior…The 48-hr Chick Embryo Whole Mount (SEE IMAGE) Before you mount your slide on your microscope stage, take a good look at the morphology of the 48-hour embryo. Note the striking changes in morphology as compare, to the 33-hour embryo. There is a cephalic flexure or bending at the level of the midbrain. The head now lies on its left side. On the other hand dorsal side of the trunk is still turned up so the twisting of the embryo is noticeable. Verify these changes under the low power objective. Note the flexion and the torsion. In addition to the cranial/cephalic flexure there is also a cervical flexure at the level of the neck region. Very briefly go through the structures previously seen in the 33-hour chick. Observe the new structures appearing for the first time (Please visit the main website for viewing the whole mount of 33-hour and 48-hour chick embryo). Ectodermal Derivatives The prosencephalon is now divided into two regions: Telencephalon: This brain region is the anterior…The 48-hr Chick Embryo Whole Mount (SEE IMAGE) Before you mount your slide on your microscope stage, take a good look at the morphology of the 48-hour embryo. Note the striking changes in morphology as compare, to the 33-hour embryo. There is a cephalic flexure or bending at the level of the midbrain. The head now lies on its left side. On the other hand dorsal side of the trunk is still turned up so the twisting of the embryo is noticeable. Verify these changes under the low power objective. Note the flexion and the torsion. In addition to the cranial/cephalic flexure there is also a cervical flexure at the level of the neck region. Very briefly go through the structures previously seen in the 33-hour chick. Observe the new structures appearing for the first time (Please visit the main website for viewing the whole mount of 33-hour and 48-hour chick embryo). Ectodermal Derivatives The prosencephalon is now divided into two regions: Telencephalon: This brain region is the anterior…