In which stage of development the embryonic cells form the germinal layers by the movement

In which stage of development the embryonic cells form the germinal layers by the movement
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In which stage of development the embryonic cells form the germinal layers by the movement A. Morula B. Blastula C. Gastrula D. Zygote
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Description : Three germ layers are formed during which stage of embryonic development :-

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What are the cells produced in the first stage of the embryonic development called ?

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The proces by which primary germinal layers are formed is called

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Assertion : Glands originate from all germinal layers. Reason : All glands are composed of epithelium tissue.

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How are animals classified according to the germ layers present in their embryonic development ?

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How are animals classified according to the germ layers present in their embryonic development ?

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What is the cell division during the first stage of the embryonic development called ?

Description : What is the cell division during the first stage of the embryonic development called ?

Last Answer : How is this stage characterized? The cell division in the first stage of the embryonic developments is called cleavage, or segmentation. In this stage, mitosis occurs from the zygote forming the new embryo.

After the blastula stage what is the following stage of the embryonic development ?

Description : After the blastula stage what is the following stage of the embryonic development ?

Last Answer : How is the passage from blastula to the next stage called? The blastula turns into gastrula in a process known as gastrulation.

After the blastula stage what is the following stage of the embryonic development ?

Description : After the blastula stage what is the following stage of the embryonic development ?

Last Answer : How is the passage from blastula to the next stage called? The blastula turns into gastrula in a process known as gastrulation. Image Diversity: gastrula

What is the cell division during the first stage of the embryonic development called ?

Description : What is the cell division during the first stage of the embryonic development called ?

Last Answer : How is this stage characterized? The cell division in the first stage of the embryonic developments is called cleavage, or segmentation. In this stage, mitosis occurs from the zygote forming the new embryo.

How are the main classes of arthropods classified according to the presence of larval stage in their embryonic development?

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Which animal's body is made up of two embryonic cell layers ?

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Supporting cells found in between the germinal epithelium is called:

Description : Supporting cells found in between the germinal epithelium is called:

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Germinal epithelial cells are cuboidal and these are found in

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Assertion : Simple columner epithelium is also called as Germinal epithelium. Reason : Columnar cells of gonads forms gametes .

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The following are true about lymphocytes: a. T cells account for 20% of the circulating lymphocytes b. in the spleen, B cells are found in the periarteriolar areas of white pulp c. in the lymph nodes, T cells occupy the paracortical area surrounding the germinal centres. d. B cells but not T cells express surface Ig G

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With respect to lens development: a. the lens first appears at 27 days of gestation b. it is formed from neural crest cells c. the lens first appears as a vesicles with a single layer of epithelial cells d. Y suture is absent in the embryonic nucleus e. the adult lens is more spherical than the foetal

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Name the embryonic stage that gets implanted in the uterine wall of a human female. -Biology

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Last Answer : Blastocyst gets implanted in the uterine wall.

in which of the following the notochord is present in embryonic stage

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Assertion : Mucoid connective tissue is called as embryonic tissue. Reason : Mucoid connective tissue is mainly found in enbryonic stage .

Description : Assertion : Mucoid connective tissue is called as embryonic tissue. Reason : Mucoid connective tissue is mainly found in enbryonic stage .

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The subphylum in which notochord is restricted only to the embryonic stage is

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Last Answer : vertebrata.

In which of the following, notochord is present in embryonic stage? (a) All chordates (b) Some chordates (c) Vertebrates (d) Non chordates

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pharyngeal gill slits in embryonic stage is a a) Anatomical evidence b) morphological evidence c) Embryological evidence d) fossil evidence

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Metagenesis refers to (a) occurrence of a drastic change in form during post-embryonic development (b) presence of a segmented body and parthe- nogenetic mode of reproduction (c) presence of different morphic forms (d) alternation of generation between asexual and sexual phases of an organism.

Description : Metagenesis refers to (a) occurrence of a drastic change in form during post-embryonic development (b) presence of a segmented body and parthe- nogenetic mode of reproduction (c) presence of different morphic forms (d) alternation of generation between asexual and sexual phases of an organism.

Last Answer : (d) alternation of generation between asexual and sexual phases of an organism.

How are embryonic stem cells different from other types of stem cell?

Description : How are embryonic stem cells different from other types of stem cell?

Last Answer : Need Answer

Identify the wrong statement with respect to embryonic stem cells

Description : Identify the wrong statement with respect to embryonic stem cells

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What is a disadvantage of adult stem cells over embryonic stem cells?

Description : What is a disadvantage of adult stem cells over embryonic stem cells?

Last Answer : What is the answer ?

The genetic defect–adenosine deaminase (ADA) deficiency may be cured permanently by (a) administering adenosine deaminase activators (b) introducing bone marrow cells producing ADA into cells at early embryonic stages (c) enzyme replacement therapy (d) periodic infusion of genetically engineered lymphocytes having functional ADA cDNA

Description : The genetic defect-adenosine deaminase (ADA) deficiency may be cured permanently by (a) administering adenosine deaminase activators (b) introducing bone marrow cells producing ADA into ... replacement therapy (d) periodic infusion of genetically engineered lymphocytes having functional ADA cDNA

Last Answer : (b) introducing bone marrow cells producing ADA into cells at early embryonic stages

The extra embryonic membranes of the mammalian embryo are derived from (a) trophoblast (b) inner cell mass (c) formative cells (d) follicle cells

Description : The extra embryonic membranes of the mammalian embryo are derived from (a) trophoblast (b) inner cell mass (c) formative cells (d) follicle cells

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Germinal epithelium is composed of :-

Description : Germinal epithelium is composed of :-

Last Answer : Germinal epithelium is composed of :- A. Cubodial epithelium B. Columner epithelium C. Squamous epithelium D. Glandular epithelium

Germinal Epithelium of overy is formed of : -

Description : Germinal Epithelium of overy is formed of : -

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The tissue in man where no cell division occurs after birth is - (1) skeletal (2) nerves (3) connective (4) germinal

Description : The tissue in man where no cell division occurs after birth is - (1) skeletal (2) nerves (3) connective (4) germinal

Last Answer : (2) nerves Explanation: Cell division is the process by which cells produce new cells. Cell division differs in prokaryotes (bacteria) and eukaryotes (protists, fungi, plants, & animals). Some tissues must ... a short lifespan. Other cells do not divide at all after birth such as muscle & nerve.

The tissue in man where no cell division occurs after birth is - (1) skeletal (2) nerves (3) connective (4) germinal

Description : The tissue in man where no cell division occurs after birth is - (1) skeletal (2) nerves (3) connective (4) germinal

Last Answer : (2) nerves Explanation: A nerve is an enclosed, cable-like bundle of axons (the long, slender projections of neurons) in the peripheral nervous system. A nerve provides a common pathway for the ... . These impulses are extremely fast, with some militated neurons conducting at speeds up to 120 m/s.

Which part of ovary in mammals acts as an endocrine gland after ovulation? (a) Stroma (b) Germinal epithelium (c) Vitelline membrane (d) Graafian follicle

Description : Which part of ovary in mammals acts as an endocrine gland after ovulation? (a) Stroma (b) Germinal epithelium (c) Vitelline membrane (d) Graafian follicle

Last Answer : (d) Graafian follicle

The tissue in man where no cell division occurs after birth is (1) skeletal (2) nerves (3) connective(4) germinal

Description : The tissue in man where no cell division occurs after birth is (1) skeletal (2) nerves (3) connective(4) germinal

Last Answer : nerves

Correct sequence of human embryonic development is

Description : Correct sequence of human embryonic development is

Last Answer : Correct sequence of human embryonic development is A. Gastrocoel-Blastocoel-Neural Crest - ... . Blastocoel-Gastrucoel-Neural crest -Notochord.

Which germ layer developes first during embryonic development?

Description : Which germ layer developes first during embryonic development?

Last Answer : Which germ layer developes first during embryonic development? A. Ectoderm B. Mesoderm C. Endoderm D. Both 1 and 3

What are the four initial stages of the embryonic development ?

Description : What are the four initial stages of the embryonic development ?

Last Answer : The four initial stages of the embryonic development are the morula stage, the blastula stage, the gastrula stage, and the neurula stage.

What is the chorioallantois membrane present in the embryonic development of reptiles and birds ?

Description : What is the chorioallantois membrane present in the embryonic development of reptiles and birds ?

Last Answer : How does this membrane participate in the energetic metabolism of the embryo? The chorioallantois membrane is formed by juxtaposition of some regions of the chorion and the allantois. Since it is ... of gases between the embryo and the exterior thus making aerobic cellular respiration possible.

What are the four initial stages of the embryonic development ?

Description : What are the four initial stages of the embryonic development ?

Last Answer : The four initial stages of the embryonic development are the morula stage, the blastula stage, the gastrula stage, and the neurula stage.

Is the mammalian embryonic development direct or indirect?

Description : Is the mammalian embryonic development direct or indirect?

Last Answer : In mammals the embryonic development is direct, without larval stage.