oblast becomes the: ___________________ 2. The hypoblast becomes the: ____________________ Provide the name of the structure that is where gastrulation begins in each animal model. In the case of the frog and fish, this structure is known by two different names – there is a space below to provide each name. 1. Xenopus (frog): ___________________ 2. Xenopus (frog): ____________________ 3. Zebrafish: ____________________ 4. Zebrafish: ____________________ 5. Mammals: ____________________

Q: Fill in the blank:  _________________ is the phase of development during which cellular divisions…

A: The multicellular organisms develop from an early stage called an embryo. Embryonic development…

Q: What are morphogens, exactly? Explain how they affect the patterning of tissue throughout embryonic…

A: Pattern formation is a development process by which the cells acquired different identities…

Q: Please match the early developmental structure on the left with the human structure it develops into…

A: Fertilization is a process in which male and female gametes fuse with each other to form Zygote .…

Q: Mature  cardiac muscle and nerve cells are in which of the following phases of interphase

A: The cell cycle consists of two phases that are the interphase and the mitotic phase. The cell grows…

Q: A woman gave birth to her baby at 26 weeks. Upon delivery, the doctor noticed that the baby showed…

A: Ans.1  Respiratory distress syndrome when there is not enough surfactant in the lung. Surfactant is…

Q: Amniocentesis is a test conducted on fetal cells found in amniotic fluid todetermine whether the…

A: Fertilization is the process of fusion of male gamete with the female gamete. After fertilization,…

Q: oogenesis.

A: oogenesis -In the human female reproductive system, growth process in which the primary…

Q: Suppose an auto accident had fractured a pregnant woman’s sphenoid bone and severed the pituitary…

A: The skull base is a main and dynamic bone structure in the skull that serves as the base of the…

Q: Kelly was recently diagnosed with stage 2 cervical cancer.  Which one of the following would not be…

A: Cervical cancer is a malignant tumour of the cervix which is  the lowermost part of the uterus.…

Q: Which of the following rows correctly identifies the development of the germ layers? Select one:…

A: The germ layers are an embryonic collection of cells that aid in the creation and development of…

Q: From what you know about embryonic development, do you think that a cell from the inner cell mass or…

A: The outer germ layer from which the nervous system is derived during embryonic development is called…

Q: Give the name of the structure that the phrase describes.The name of the thin, protective membrane…

A: An embryo is the first phase of the development of offspring in the sexual reproduction species.…

Q: The placentaa. develops from the trophoblast.b. allows maternal blood to mix with embryonic blood.c.…

A: After fertilization of the zygote, the cell begins to divide, forming the blastocyst. It is at the…

Q: Question 2 of 10 Question 2. If an embryo that contains neural crest cells that are migrating from…

A: Neural crest cell migration is required for the proper development of the body of a fetus. It is…

Q: At what phase of development would a mouse embryo appear me similar to a chick embryo? Blastula…

A: THE STAGE OF DEVELOPMENTIS BLASTULA STAGE.

Q: Complete the sentences relating to organogenesis, matching the first part of the sentence on the…

A: Ans) 1.Formation of heart tubes involves -B.mesenchyme to epithelial transition 2.Formation of the…

Q: Which of the following is not derived from the ectoderm? a. adrenal medulla b. epidermis of skin c.…

A: The cell is known to be the fundamental unit of all life forms. Those who are similar in functions…

Q: In the development of amniotes (reptiles, birds, mammals), the defining feature of gastrulation…

A: Answer is : primitive streak The beginning of gastrulation is marked by the appearance of a groove…

Q: Fill up the question correct asap

A: Connective tissue refers to the tissue that supports, connects, separates, or combines with other…

Q: Which statement is true about the process shown? Bones and cartilage are directly formed from the…

A: Fertilization is a process in which the sperm fuses with the egg to form single celled, diploid…

Q: The development of a zygote into a baby involves pre-embryonic development for the first 2 weeks,…

A: Introduction: Prenatal development occurs in three major phases. The first two weeks following…

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: Which type(s) of embryological testing would you perform in order to determine the level of…

A: The process of formation of an embryo with the uterus is known as embryogenesis. It is a complex…

Q: In 2 paragraphs, explain why early childhood is an important stage in human growth

A: Early childhood development serves as a building block for overall development of a child. Early…

Q: This structure houses embryo. a. E b. A c. C d. B e. D

A: The picture is showing the female reproductive system of the human body.

Q: In embryos with spiral cleavage the 4d cell gives rise to which germ…

A: INTRODUCTION Mesoderm It is a germ layer formed during gastrulation. Present between ectoderm and…

Q: Mesodermal Derivatives of the Developing Chick Embryo 33-hour Chick Embryo Transverse Sections…

A: In the common chick development the formation of heart begins after 30 hours of incubation.  30 to…

Q: Which of the following extra-embryonic membranes becomes the embryonic portion of the structure…

A: Extraembryonic membrane are the extra membrane that are formed outside the growing embryo . There…

Q: In mammals, primordial germ cells migration ends when they reach the _________________   posterior…

A: Primordial germ cells (PGCs) are highly specialized cells that act as precursors of gametes, which…

Q: Can I use the short prefix version of a word in a sentence .  'The stem cells can develop into…

A: No, it is not correct to write short prefixes such as ecto, meso, and all. Because words like…

Q: Explain the concept of negative feedback using the male reproductive hormones (hormonal control of…

A: As per the guidelines we are supposed to answer only the first question in case of multiple question…

Q: 38, 39- 37 36- 40. 35- 41 42 34 33 43, 32 31 30 45 46 47 0 0 29 48 27 26 25 21 24 20 21 10 19 11 18…

A: A multicellular organism develops from a single cell called a fertilized egg. The fertilized egg…

Q: Q1: This is a type of cell that can become any type of cell or even a complete embryo. Totipotent…

A: Stem cell has the ability to develop into specialised cell types in the body. Stem cells are those…

Q: During cleavage, the mass of cells: a. increases b. decreases c. doubles with every cell division d.…

A: The development of a human embryo is called embryogenesis, which starts with the fertilization of an…

Dissection

Dissection is the process of cutting up the tissue of a dead or live animal or plant, to do anatomical studies and surgical treatments. The purpose of dissection is to learn more about the overall structure of organs and organ systems and thereby understand the physiology of the organism.