In our society the women are often blamed for giving birth to daughters Can you explain why this is not correct?
All human beings have $23$ pairs of chromosomes. Human males have $22$ pairs of autosomes and contain one or two types of sex chromosome. They are either $\mathrm{X}$ or $\mathrm{Y}$. On the contrary, human females have $22$ pairs of autosomes and contain only the $X$ sex chromosome. The sex of an individual is determined by the type of the male gamete ($X$ or $Y$ ), which fuses with the $X$ chromosome of the female. If the fertilizing sperm is $X$, then the baby will be a girl and if it is $\mathrm{Y}$, then the baby will be a boy. Hence, it is incorrect to blame a woman for the gender of the child.
Unfertilized egg of human contains or When released from ovary, human egg contains
Egg undergoes cleavage and forms
In which stage is blastocoele formed
Receptors for sperm binding in mammals are present on :
Which is the correct sequence in the development of man