मराठी
कर्नाटक बोर्ड पी.यू.सी.पीयूसी विज्ञान 2nd PUC Class 12

In our society the women are often blamed for giving birth to daughters. Can you explain why this is not correct?

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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?

स्पष्ट करा
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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.

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Notes

Students should refer to the answer according to their questions.

  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 2: Human Reproduction - EXERCISES [पृष्ठ ४०]

APPEARS IN

एनसीईआरटी Biology [English] Class 12
पाठ 2 Human Reproduction
EXERCISES | Q 19. | पृष्ठ ४०
नूतन Biology [English] Class 12 ISC
पाठ 2 Human Reproduction
NCERT EXERCISES | Q 19. | पृष्ठ ११७
नूतन Biology [English] Class 12 ISC
पाठ 3 Reproductive Health
HIGHER ORDER THINKING SKILLS QUESTIONS (HOTS) | Q 1. (i) | पृष्ठ १४०
नूतन Biology [English] Class 12 ISC
पाठ 3 Reproductive Health
HIGHER ORDER THINKING SKILLS QUESTIONS (HOTS) | Q 1. (ii) | पृष्ठ १४०

संबंधित प्रश्‍न

Ovulation is induced by a hormone called ______.


______ type of reproduction occurs without fusion of gametes.


What is gamete formation?


Give scientific reason.

There is a menopause when women are 45-50 years old.


If newborns are produced at the age of menopause, they may be with some abnormalities. Why?


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.


500 spermatozoa are formed from ____________ secondary spermatocytes.


Which is the correct order of steps occurring during spermatogenesis?


Identify the enzyme released by the sperm which has lytic activity.


Which of the following is diploid?


How many autosomes does a human primary spermatocyte have?


Acrosome reaction in sperm is triggered by ______.


Which of the following stage of oogenesis forms a membrane called zona pellucida surrounding it?


Which of the following contains a fluid filled cavity called antrum?


There is no cell division involved in ______.


Corona radia is made up of ______.


How many functional sperms and how many ova will be formed by a primary spermatocyte and a primary oocyte.


The nutritive cells found in seminiferous tubules are ______.


How many sperms are formed from 4 primary spermatocytes?


During oogenesis, each diploid cell produces ______.


Fetal sex can be determined by examining cells from amniotic fluid looking for:


Growth hormone of pituitary is more effective in ______.


Follicular atresia is:


Which of the following cells during gametogenesis is normally diploid?


Germ cells present in the seminiferous tubules undergo ______


Draw a neat and labelled diagram of spermatogenesis.


Process of maturation and development of sperms ______.


What is spermatogenesis?


Which gamete is produced through oogenesis?


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