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प्रश्न
Modern techniques like surrogate mother, sperm bank and IVF technique will help the human beings. Justify this statement.
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उत्तर
Modern techniques like surrogacy, sperm bank, IVF technique help human beings to have their children.
Techniques are used for having the child in case of those childless couples who suffer problems like less sperm count, obstacles in the oviduct, etc.
- In Vitro Fertilization (IVF) - In this technique, fertilization is brought about in the test-tube and the embryo formed is implanted in uterus of woman at appropriate time.
- Surrogacy - Surrogacy is another method which is used for women who face problem in implantation of embryo in uterus. In this technique the donor of the oocyte is the women itself who has problem in implanting the embryo in the uterus. The collected oocyte is fertilized with the sperm of her husband in a test tube. The embryo which is obtained after fertilization is implanted in the uterus of another female who is called the surrogate mother.
- Sperm bank - It is a new concept which is similar to blood banks. Sperms are collected from the male donors after a thorough medical checkup and stored for future use. These sperms are used to fertilize the ovum of the women and then this fertilised ovum is implanted in the uterus of the same women.
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संबंधित प्रश्न
Fill in the blank:
The time between fertilisation and birth is called _________.
What happens in a girl’s body under the influence of hormones?
Give appropriate term for the following:
The onset of reproductive phase in a female.
Give the appropriate term for the following:
Monthly discharge of blood and disintegrated tissues in the human female
Sketch the labeled diagram:
Human female reproductive system
Name two hormones secreted by ovary of female reproductive system.
The diagram alongside is the vertical section of female reproductive organs. Study the diagram and answer the questions that follow:
(i) Name the fully developed part of ovary containing the ovum.
(ii) Name the organ of the female body in which the foetus develops.
(iii) What is ovulation?
(iv) Which two hormones are secreted by ovary?
Give the functions of the following:
Penis
The below diagram represents the vertical view of the human female reproductive system.
(i) Label the parts indicated by the guidelines 1 to 8.
(ii) How does the uterus prepare for the reception of a zygote?
(iii) What happens to the uterus if fertilization takes place?
(iv) What happens to the uterus if fertilization has failed to take place?
______ pollen mother cells should undergo meiotic division to produce 64 pollen grains.
Which of the following is ectodermal in origin?
| (i) | Heart |
| (ii) | Sweat glands |
| (iii) | Adrenal medulla |
| (iv) | Middle ear |
| (v) | Urinary bladder |
| (vi) | Dermis of skin |
Where does the ovum receive the sperm?
The opening of the vagina is often covered partially by a membrane called ______.
How does fertilisation take place? Fertilisation occurs once in a month. Comment.
In human beings, the correct sequence of events during reproduction is
Match the following:
| Ovaries | Bean shape |
| Fallopian tubes | Almond shape |
| Uterus | Funnel – shape |
| Kidney | pear-shaped |
Female reproductive organs and associated functions are given below in column A and B. Fill the blank boxes.
| Column A | Column B |
| Ovaries | Ovulation |
| Oviduct | a |
| b | Pregnancy |
| Vagina | Birth |
Given below is a certain situation. Analyze and describe its possible impact on a person:
Egg is not fertilised in a human female.
Choose the odd one out from the group of terms given below and write the category for the remaining terms:
Which of the following is not a component of Fallopian tube?
