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
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?
Name the hormones involved in regulation of spermatogenesis.
What is oogenesis?
Multiple choice question.
The given figure shows human sperm. Various parts of it are labelled as A, B, C, and D. Which labelled part represents acrosome?
In meiosis, the number of chromosomes becomes ___________.
Sex organs produce gametes which are diploid.
Draw a labeled sketch of a spermatozoan.
Give a schematic representation of spermatogenesis and oogenesis in humans.
Complete the analogy.
1 primary spermatocyte : 4 spermatozoa :: 1 primary oocyte : ____________.
Identify the diploid cell.
Formation of ____________ is an indication of the termination of oogenesis.
500 spermatozoa are formed from ____________ secondary spermatocytes.
Select the correct sequence of oogenesis.
Which of the following contains a fluid filled cavity called antrum?
Identify the wrong statement from the following.
A reaction of granules content which harden the zona pellucida and ensures sure block to polyspermy is ______.
Besides activating the egg another role of a sperm is to carry ______ to egg.
Preparation of sperm before penetration of ovum is ______.
In spermatogenesis, reduction division of chromosome occurs during conversion of ______.
Acrosome is a type of ______.
In oogenesis haploid egg is fertilised by sperm at which stage?
The prostate gland and seminal vehicle perform the function of ______.
Mark the odd one.
What does the figure represent?
The region of the root tip whose cells undergo rapid elongation and enlargement and are responsible for the growth of the root in length is called the:
Which type of cell division forms spermatids from the secondary spermatocytes?
Sketch and label the process of oogenesis.
What is spermatogenesis?
