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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?
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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.
संबंधित प्रश्न
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?
Draw a labelled diagram of sperm.
Fill in the blank.
---------- type of reproduction occurs without fusion of gametes.
Explain two main process in sexual reproduction.
Sex organs produce gametes which are diploid.
Mention the differences between spermiogenesis and spermatogenesis.
Expand the acronym.
LH
The following is the illustration of the sequence of ovarian events (a-i) in a human female.

Identify the figure that illustrates ovulation and mention the stage of oogenesis it represents.
Which of the following enter the maturation phase of oogenesis?
The part labelled as ______ contains the energy source that facilitates sperm motility.

Identify the diploid cell.
Identify the proper order of spermatogenesis and choose the correct option.
Identify the enzyme released by the sperm which has lytic activity.
Which of the following is diploid?
What is the location of oogenesis?
The human male gamete is usually about ______ in length.
It The cell division in secondary oocyte is suspended at ______.
At what stage of life is oogenesis initiated in a human female?
Which of the following is a primary sex organ of female?
Select the correct sequence of stages of spermatogenesis in a human male ______.
Aquatic animals in which fertilisation occurs in water are said to be
Fetal sex can be determined by examining cells from amniotic fluid looking for:
Follicular atresia is:
The mother germ cells are transformed into a mature follicle through series of steps. Provide the missing steps in the blank boxes.

During reproduction, the chromosome number (2n) reduces to half (n) in the gametes and again the original number (2n) is restored in the offspring. What are the processes through which these events take place?
Which type of cell division forms spermatids from the secondary spermatocytes?
What is spermatogenesis?
Draw a neat and labelled diagram of spermatogenesis.
Meiotic division of the secondary oocyte completed ______.
