What is the difference between embryonic germ cells and embryonic stem cells?
A germ cell is a haploid cell (having only 23 chromosomes), such as a sperm or an egg. An embryonic stem cell is a diploid cell (containing 46 chromosomes) and is found in the inner cell mass of an embryo. This type of cell is pluripotent, meaning it can form any cell or tissue type.
Sacrifice a embryo at the blastocoel stage. Obtain the stem cells from the blastomere.
Germ cells are technically germline cells or "gametes." They are the cells of the sexual, reproductive system (the spermatozoa and ova). The somatic cells are all the other cells in the body.
Mitosis occurs in "normal" cells and meiosis in germ cells.
Preembryonic forms are the zygote (fertilized egg), morula (a solid ball of cells), blastocyst (hollow ball with a single germ layer), and bilaminar embryonic disc (with two germ layers).
Gametes are reproductive cells and somatic cells are all the other cells that make up an organism.
somatic cells are those form the body of organisms while germ line cells are those which give rise to gemete somatic cells undergo mitosis while germ line cells undergo meiosis and gamete are reproductive cells
Muscle tissues are derived from the mesodermal layer of the embryonic germ cells through a process called myogenesis.
1. pollen grain is present in anther whereas ovule is present in ovary 2. pollen grains contain male germ cells for a flower whereas ovule contains female germ cells of a flower.
It develops from the endoderm germ layer
Ectoderm is responsible for the formation of neural tissue. It is one of the three main layers of germ cells in the early stages of embryonic development.
Gene is a segment of DNA that is located in a chromosome and that codes for a specific hereditary trait while Germ Plasm is hereditary material (chromosomes and genes) that is usually contained in the protoplasm of germ cells.
diploblastics have two germ layers and triploblastic have three germ layers
The middle embryonic germ layer, lying between the ectoderm and the endoderm, from which connective tissue, muscle, bone, and the urogenital and circulatory systems develop.
Yes. Any cells that form connective tissue (found in bone, muscle, skin, cartilage, etc) come from the same progenitor line of cells originating from the embryonic mesoderm (one of 3 embryonic "germ" layers). The process starts with Multipotent Stem Cells (MSC). They all have the same lineage. Eventually, they branch off and differentiate into different types of connective tissue cells. The major ones are osteoblasts, adipocytes (fat cells) and chondrocytes (cartilage cells).
Yes, earthworms are coelomates because they have the "tube within a tube" body plan that characterises coelomates. More specifically, coelomates have a body cavity that is completely lined with cells derrived from the mesoderm (the germ layer of tissue found between the endoderm and ectoderm in embryonic development).
Somatic cells or body cells have a dipliod or full set of chromosomes. Gametes or sex cells, also called germ cells, have a hapliod number of chromosomes or half the number. Sperm and eggs are the gametes of humans, and you misspelled cell.......... artard
Phylum arthropoda does fall under the Protostomia clade characterized by bilateral symmetry and three germ layers.
the difference is when a temporary slide has a germ it can come off and on a permanent slide has a germ on it it can't come off
Sponges have two germ layers therefore they are diploblastic.
in germ cells, the DNA(Deinoribo Nucliec Acid) is more of a circular shape.in most other organisms, the DNA is in the familier double helix structure
Triploblastic animals have 3 germ layers while diploblastic animals have 2 germ layers.
No. Germ cells undergo Meosis, while Somatic cells undergo Mitosis
ovaries. it's the female germ(gamete) cells. :)
Germ cell mutations can be passed on to offspring, somatic cell mutations cannot
Body Cells range from doing work as a heart cell to being a liver cells. Body cells have 46 chromosomes. Sex cells (germ Cells) are only used for reproduction, are the ovum in woman and the sperm in a man. Sex cells have 23 chromosomes, so that they can be matched up with another sex cell to form a body cell.
The incubation period is the time between catching a "germ" and experiencing signs and symptoms of disease. The window period refers to testing, not symptoms. It's the time between catching a "germ" and having a test for that germ come up positive.
The endoderm, mesoderm, and ectoderm
I ddon'ttt dknow(with an Indian accent)
Yes, they do. They have true coeloms, i.e. their coeloms (body cavities) are lined with mesodermal (referring to the embryonic germ layer which forms the muscles, nervous system, and generally the "meat" of the body") cells forming its inner lining.
they are reproducing cells
In pollen grains germ cells give rise to male gametes
Germ cells are located in your reproductive organs (ovaries and testes).
a male germ cell
So far as nuclear division is concerned, in somatic cells it is mitotic whereas in germ cells it is meiotic.
Your "germ" (or sex, but I prefer germ) cells undergo mitosis to create more diploids, but then they undergo Meiosis I to form a haploid. In boys, the germ cells will undergo Meiosis II to form their complete germ cells. In girls, the cell will only complete Meiosis II if the egg is fertilized. So the answer is sort of yes... the diploids will undergo Mitosis, but to actually get germ cells... they must undergo… Read More
Germ cells are cells that become gametes (are n: have have the genetic material) and somatic cells are all the rest (2n)
Adult stem cells are found in the bone marrow, they are also called multi-potent stem cells, i.e. they can only differentiate (develop) into 4 main types or cells (nerve, blood, cardiac and white blood cells) They are not as versatile as embryonic stem cells as they pluripotent i.e. they can differentiate into the 3 germ layers, mesoderm, endoderm, ectoderm. Basically they 3 groups of somatic (body) cells
Germ is non medical term of microorganism which includes parasite, amoeba, fungus, bacteria, richetchia, virus, and so many others. Bacteria is one of the germ. usually the germ causes disease, but some germ are good for us, so called friendly germ.
In fact, they do not. Only germ cells, or non-somatic cells, undergo meisis. Calling them germ cells is just a fancy way of saying that they are sex cells.
I'm gonna go out on a limb here... there are somatic ("body") cells, and there are germ cells. Somatic cells undergo mitosis, while germ cells undergo meiosis.
Germ cells after meiosis are haploid.
At the beginning of week three after fertilization the embryo is in the the form of a bilaminar disc with the epiblast layer on top, continuous with the amniotic cavity and the hypoblast layer below, continuous with the yolk sac. Gastrulation is process by which this bilaminar (2 layer) disc becomes three germ layers: the endoderm, the mesoderm and the ectoderm. The primitive streak forms from a thickened band of epiblast cells. These cells proliferate… Read More
In higher animals, it is part of the early stage of development for an embryo. The "primitive streak" is a line of cells stretching from the exterior of the embryonic disc to the center. It divides the cell into left and right portions (bilateral symmetry) and allows the migration of cells that will form the three germ layers of the embryo (endoderm, mesoderm, ectoderm).
Germ cells. Somatic cells perform mitosis to get genetically identical daughter cells, and germ cells perform meiosis to get genetically different cells. In gametophytes, it's known as generative cells.