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प्रश्न
Explain the following term:
Stem cells
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उत्तर
These are special types of cells present in the body of multicellular organisms. These cells give rise to all other types of cells present in the body of multicellular organisms.
A new organism is formed from the zygote that is formed by the union of male and female gametes. At the earliest stage of development, the organism is in the form of a mass of cells. All the cells in that mass are almost alike. Those cells are called stem cells.
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संबंधित प्रश्न
What are stem cells?
Write the correct answer in blank circles.
At the earliest stage of development, the organism is in the form of a mass of a cell, which are almost alike, those cells are called ____________.
Which of the following factors are considered or need to be paid attention to during organ transplantation?
_____________ is the revolutionary event in biotechnology after cloning.
Cell _____________ starts from 14th day of conception.
____________ are present in the umbilical cord by which the foetus is joined to the uterus of the mother.
For the purpose of preservation stem cell samples are kept in __________.
Observe the following figure and answer the questions.
- Which property of stem cell is shown in the figure?
- Write the name of the cells or organs denoted by X and Y.
- What is the benefit of tissue/organ culture from stem cells?
Complete the paragraph.
(red bone marrow, degenerated, umbilical cord, adipose, division, blastocyst)
Different tissues of the body are formed by _______ of stem cells. Stem cells are present in the _______ by which the fetus is joined to the uterus of the mother. Stem cells are also present in the _______ stage of embryonic development. Stem cells are present in _______ and _______ connective tissue of adult human beings. It has become possible to produce different types of tissues and the _______ part of any organ with the help of these stem cells.
Identify the given figure and label it.
Explain the statement.
The revolutionary phenomenon in biotechnology after cloning is stem cell research.
______ cells are undifferentiated mass of cells.
Name the types of stem cells
Distinguish between
undifferentiated cells and differentiated cells
How are stem cells useful in regenerative process?
