A family has 9 daughters. What is the probabi | vedclass

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(A) The sex of a child is determined by the sperm cell that fertilizes the egg. Each pregnancy is an independent event. In humans,the male produces tw

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$50$

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(A) The sex of a child is determined by the sperm cell that fertilizes the egg. Each pregnancy is an independent event. In humans,the male produces two types of sperm: $50\%$ carrying the $X$ chromosome and $50\%$ carrying the $Y$ chromosome. Therefore,for every pregnancy,the probability of having a boy or a girl remains $1/2$ or $50\%$,regardless of the gender of the previous children. Thus,the probability of having a son at the $10$th birth is $50\%$.

Column-$I$	Column-$II$
$(P)$ $(X+O)$	$(i)$ Genetic constitution in Drosophila
$(Q)$ $(XX+XY)$	$(ii)$ Genetic constitution in grasshopper
$(R)$ $(ZZ+ZW)$	$(iii)$ Sex determination in birds
$(S)$ $(AA+XX)$	$(iv)$ Sex determination in humans

$A$ family has $9$ daughters. What is the probability of having a son at the $10$th birth (in $\%$)?

Similar Questions

In $Drosophila$,the $XXY$ condition results in a female,whereas in humans,the same condition results in a male with $Klinefelter's$ syndrome. This proves that:

Match the following columns:
Column-$I$ Column-$II$
$(P)$ $(X+O)$ $(i)$ Genetic constitution in Drosophila
$(Q)$ $(XX+XY)$ $(ii)$ Genetic constitution in grasshopper
$(R)$ $(ZZ+ZW)$ $(iii)$ Sex determination in birds
$(S)$ $(AA+XX)$ $(iv)$ Sex determination in humans

In humans,the chromosomal condition of a male is:

The genes,which are confined to the differential region of the $Y$ chromosome only,are called:

In $Drosophila$,the sex is determined by

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