Advertisements
Advertisements
प्रश्न
In our society the women are often blamed for giving birth to daughters. Can you explain why this is not correct?
Women are often blamed for producing female children. Consequently, they are ill-treated and ostracized. How will you address this issue scientifically if you were to conduct an awareness programme to highlight the values involved?
Advertisements
उत्तर
Blaming women in our society for having girls is incorrect because the father determines the sex of the baby, not the mother. As we all know, the human female chromosome pattern is XX, while the male is XY. As a result, all haploid gametes produced by the female (ova) have the sex chromosome X, whereas male gametes (sperms) can have either X or Y; therefore, 50% of sperms carry the X chromosome, and the other 50% have the Y. Following the fusing of the male and female gametes, the zygote would bear either XX or XY depending on whether the sperm carrying X or Y fertilized the ovum. The zygote bearing XX would produce a female baby, while XY would produce a male. As a result, the baby’s sex is determined by male sperm rather than female ova.
Notes
Students should refer to the answer according to their questions.
APPEARS IN
संबंधित प्रश्न
The following is the illustration of the sequence of ovarian events (a − i) in a human female
(i) Identify the figure that illustrates ovulation and mention the stage of oogenesis it represents.
(ii) Name the ovarian hormone and the pituitary hormone that have caused the above mentioned event.
(iii) Explain the changes that occur in the uterus simultaneously in anticipation.
(iv) Write the difference between ‘c’ and ‘h’.
(v) Draw a labeled sketch of the structure of a human ovum prior to fertilization.
Identify True/False statement. Correct the false statement to make it true.
Oogenesis takes place in the corpus luteum.
Describe the process of budding in hydra.
In meiosis, the number of chromosomes becomes ___________.
If one pollen grain produces two male gametes, how many pollen grains are needed to fertilize 10 ovules?
The process which the sperm undergoes before penetrating the ovum is ____________.
Mention the differences between spermiogenesis and spermatogenesis.
Describe the structure of the human ovum with a neat labelled diagram.
Identify the proper order of spermatogenesis and choose the correct option.
Four primary spermatocytes give rise to ______.
Which of the following is diploid?
Select the pair of cells which does not divide further by mitosis.
Which of the following contains a fluid filled cavity called antrum?
It The cell division in secondary oocyte is suspended at ______.
Gray crescent is the area ______.
How many sperms are formed from 4 primary spermatocytes?
Acrosome is a type of ______.
During oogenesis, each diploid cell produces ______.
The prostate gland and seminal vehicle perform the function of ______.
Mark the odd one.
3-celled male gamete develops in:
The number of chromosome groups at the equatorial plate in metaphase-I of meiosis in a plant with 2n = 50 shall be:
Follicular atresia is:
Germ cells present in the seminiferous tubules undergo ______
How many spermatozoa are formed from one secondary spermatocyte?
Match List - I with List - IІ.
| List - I | List - II |
| A. Head | I. Enzymes |
| B. Middle piece | II. Sperm motility |
| C. Acrosome | ΙII. Energy |
| D. Tail | IV. Genetic material |
Choose the correct answer from the options given below:
At the onset of puberty, gonadotropin releasing hormone is secreted by ______.
In which organ does oogenesis take place?
Which of the following phases are shared by both spermatogenesis and oogenesis?
