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प्रश्न
Explain the following term:
Stem cells
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?
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.
Find an odd one out.
Zygote is formed by union of male and female gametes. Name the cells that are present at the initial stage of development.
Define.
Stem cell
Give scientific reason.
Stem cells are extremely important in regenerative therapy.
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.
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
- Which process is shown in the given diagram?
- What is the importance of this process?
- Which organs can be transplanted by this process?
