The formation of three germ layers is called Select one: a. gastrulation b. pluripotency c. differentiation d. neurulation

Q: What happens to the embryo after week 8? Select one: a. All organ formation has completed, so the…

A: Fetal development within the womb is called prenatal development. It is a process that occurs in…

Q: A preembryo has:- a. A neural tube. b. A heart bulge. c. A cytotrophoblast. d. A coelom. e. decidual…

A: Cell denotes the primary structural and functional unit of all living organisms. Scientists…

Q: The placenta functions to Select one: a. produce blood cells b. create amniotic fluid c. provide…

A: The placenta is a large organ that consists of the blood vessel. It begins to form the blastocyst…

Q: Regarding oogenesis, diplotene stage begins at a.birth b.Meiosis II c.7th month of fetal…

A: Diplotene is defined as the stage of meiosis II during which the homologous chromosomes remain…

Q: Construct a Table to show the differentiation of the Germ Layers: ( It is a known fact…

A: Introduction The process of forming and developing an embryo from a zygote or a somatic cell is…

Q: An individual has the chromosomal makeup XX and sexual differentiation proceeds normally.  Which of…

A: Introduction: The process by which the embryo, which is sexually indifferent, progressively obtains…

Q: The Life Cycle of the Horse Embryo Process 2 Zygote Process Gametes Process 3 Reproductive organs…

A: The life cycle of a horse, like many other sexually reproducing organisms, involves a series of…

Q: Which of the following is a major difference between spermatogenesis and oogenesis? a.…

A: The reproductive arrangement of an organic entity, otherwise called the genital framework, is the…

Q: What is the relationship between a primary spermatocyteand a spermatogonium?a. They are genetically…

A: Sexually reproducing organisms have a reproductive system consisting of primary sex organs called…

Q: A chemical that prevents acrosomal proteins from interacting with proteins on the egg membrane would…

A: The binding of the sperm to the vitelline envelope of the egg is species-specific.

Q: The beginning of brain and spinal cord formation is termeda. cephalocaudal folding.b.…

A: Gastrulation process is characterized by formation of three primary germ layers, they are ectoderm,…

Q: At fertilization, a sperm contributes   a. a diploid nucleus.   b. mRNAs.   c. a centrosome.…

A: At the time of fertilization the mail contributes haploid sperm and the female contribute ova…

Q: The Following are parts of sperm cell, what their importance in fertilization? A. Acrosomal Vesicle…

A: The Following are parts of sperm cell, what their importance in fertilization? A. Acrosomal Vesicle…

Q: Which of the following scenarios does NOT describe an event that leads to the conception of twins?…

A: Human reproduction is a sexual reproduction where the sperm from the male fuses with the ovum from…

Q: Which of the following correctly identifies the stages in embryonic development between weeks 2 and…

A: Fertilization is a process in which haploid male gamete (sperm) fuses with the haploid female gamete…

Q: Which of the following rows correctly identifies the stage in development and the embryonic age most…

A: Gestational age refers to the period of baby growth in the womb till birth. The period starts from…

Q: Component of bilaminar germ disc: a.Hypoblast and endoderm b.Epiblast and hypoblast c.Epiblast and…

A: INTRODUCTION       In the inner cell mass the bilaminar embryonic disc may formed two layers of…

Q: Which of the following is false? a. The endoderm, mesoderm, ectoderm are germ layers. b. The…

A: The fusion and amalgamation of the male spermatozoa with the ovum of the female are the…

Q: Why is a second polar body expelled after fertilisation (select one) a. The oocyte must recativate…

A: The second polar body is a small, non-functional cell that is produced during oogenesis after the…

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: Which cell contributes the necessary nutrition to the growing zygote? a a polar body b the egg…

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

Q: How do you expect Kartagener syndrome leads to infertility?   A. The lack of a plasma membrane means…

A: Primary ciliary dyskinesia(PCD) is a rare autosomal Recessive genetic disorder. PCD is a genetically…

Q: : 1. Neural Crest Cells 2. Somites 3. Stem Cells

A:

Q: In humans, fertilization usually occurs in thea. fimbriae.b. vagina.c. uterus.d. uterine tubes.

A: Answer -Fertilization is the process by which both the gametes from two different parents fuse…

Q: Label each tissue with the specific source germ cells: v Gastrointestinal tract A. Intermediate…

A: We are tripoblastic organisms that means we contains three types of germ layers that includes…

Q: Gastrulation does NOT Select one: a. involve the formation of germ layers b. consist of endoderm,…

A: Introduction: When the new offspring develops from the existing organisms, the process is referred…

Q: uring the embryonic period each of the three germ layers gives rise to a number of specific tissues…

A: Triploblastic animals have three germinal layers (ectoderm, mesoderm and endoderm) during embryonic…

Q: which of the following does not aid the sperm in fertilization? a. hyaluronidase & protease b.…

A: The sperm is the male gamete that is haploid (n) in nature. It is developed in the seminiferous…

Q: After fertilization a developing embryos goes through several changes. At about 2-3 days, what is…

A: During fertilization the haploid gametes, that is, sperm from a male and secondary oocyte from…

Q: A) The correct order of chronological order of developmental events is a. 1.cleavage 2.…

A: Since you have asked two questions, we would be answering only the first. Post the second question…

Q: During gastrulation, cells from the _____ layer of the bilaminar germinal disc migrate and form the…

A: The process during the development of the embryo where the folding of blastula on itself results in…

Q: For numbers 9-10, refer to the choices below. A. To allow corpus luteum to disintegrate leading to…

A: Introduction : The menstrual cycle is the female reproductive cycle in which the uterine lining…

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: Which of the following is not true about neurulation? Choose all possible answers. a. Segregation…

A: The brain is a complex organ that controls the thought, memory, emotion, touch, motor skills,…

Q: Somites develop froma. paraxial mesoderm.b. intermediate mesoderm.c. lateral plate mesoderm.d. head…

A: Somites can be defined as the paired and block-like structures of paraxial mesoderm present in the…

Q: The placenta function to Select one: A. Produce blood cells B. Provide nutrition for the growing…

A: The placenta is a temporary, membranous, vascular organ that develops in females during pregnancy.…