Which of the following extra-embryonic membranes becomes the embryonic portion of the structure involved in waste and nutrient exchange between the embryo and the mother? Select one: A. Amnion B. York sac  C. Chorion D. Trophoblast

Q: Which of the following situations is the result of epistasis? a A mouse has black fur, black eyes,…

A: All the organisms have a hereditary currency. This currency is the gene. Genes are present in the…

Q: At which stage of embryogenesis, major patterns of the internal tissues of the embryo have been…

A: Embryogenesis It is defined as a process which occurs after the process of fertilization of an…

Q: The mesoderm gives rise to   a. structures derived from epidermis, such as hair, feathers, nails,…

A: The process called gastrulation is the most characteristic event occurring during the third (3rd)…

Q: For pattern formation to occur, the cells in the developing embryo must a. “know” their position…

A: The embryo formed after the fusion of the male and female gametes is the basis of the development of…

Q: About 2 weeks after birth, a neonate began to vomit shortly after feeding. Each time, the vomitus…

A: Vomiting in neonates is common and most of the time it is insignificant or unimportant. Vomiting in…

Q: What are the pathways through which a neural tube defect can occur? Select one or more: O A. Failure…

A: The following three variables have played an important role in the assessment and prevention of…

Q: In a reptile egg, the extraembryonic membrane thatencloses the embryo in a watery environment is…

A: Answer is b.) amnion.

Q: A fertilized egg, also called a________ , is a very large cell. One of the first events of animal…

A: Answers are :   A fertilized egg, also called a zygote, is a very large cell. One of the first…

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: 16. During chick and human development, cells that form the embryo come from the A. epiblast B.…

A: Embryo It is form after the formation of zygote which later turn into foetus.

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

A:

Q: Estradiol is found in high levels in the pregnant rat. This estradiol is prevented from affecting…

A: In the pregnant rats progesterone will be essential for the maintenance of the pregnancy along with…

Q: During embryonic development 2 mammary cords appear on the surface of the ventral skin. Along these…

A: Mammary cords are structures that appear during embryonic development on the ventral skin. They…

Q: Which of the following correctly identifies the different phases of human development? Select one:…

A: Human development  It is the process of development of the human body , which begins with the…

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: Which of the following statements relating to axis formation in chickens is FALSE? a. Henson's node…

A: A) true- Henson's node secretes proteins that antagonize BMPs and that protein is named as…

Q: All of the following are true about humans EXCEPT: A. our zygote and early embryo cells have…

A: Introduction :- A zygote is a eukaryotic cell created when two gametes fertilise each other. The…

Q: Which of the following is true about Cleavage? Choose all possible answers a. At the end of…

A: Cleavage is the process of cell division in the developing embryo following fertilisation in…

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: Early human embryos have both male and female reproductive tissues but, by the time they are born,…

A: The intermediate mesoderm is responsible for the development of the reproductive organs. The adult's…

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: D E Figure 42.11 Use the figure above showing human embryonic developmental day 14 to ans The…

A: Embryo is pre birth stage. It is formed just after fertilization and is followed by fetal stage. It…

Q: What four types of cellular processes must occur to enable a fertilized egg to develop into an adult…

A: Pattern development is the cycle by which a particular cell, the treated egg, partitions to offer…

Q: Match the tissue to the germ layer it develops from. Question   Epithelium…

A: The three germ layers are particularly seen in vertebrates during the embryonic development.…