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प्रश्न
Define.
Stem cell
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उत्तर
Stem cells are specialised cells that give rise to all other types of cells present in the body of multicellular organisms.
संबंधित प्रश्न
What are stem cells?
Write the correct answer in the blank circles.
_____________ 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 __________.
Find an odd one out.
Name the following.
Cells that are present in the initial development stage of zygote, that is formed by theunion of male and female gametes.
Give scientific reason.
Stem cells are extremely important in regenerative therapy.
State two types of stem cells.
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.
Observe the given figure and answer the following questions.
- What is shown in the figure?
- What can the stem cells make in this figure?
- What can these stem cells transform into?
Identify the given figure and label it.
Distinguish between
undifferentiated cells and differentiated cells
How are stem cells useful in regenerative process?
