In which stage does the condensation of chromosomes reach its maximum level?

If the direction cosines of two lines are given by $l+m+n=0$ and $l^2-5m^2+n^2=0$,then the angle between them is

Which of the following is the preferred site for injecting medication to ensure rapid action and minimize side effects?

Which of the following sets of variables gives a straight line with a negative slope when plotted? ($P =$ vapour pressure,$T =$ Temperature in $K$)

If $n$ is an integer with $0 \leq n \leq 11$,then the minimum value of $n!(11-n)!$ is attained when a value of $n$ equals to

If $u=e^{x^2-y^2}$, then