If the roots of a flowering plant contain $24$ chromosomes,how many chromosomes will its gametes contain?

Rose plants produce large,attractive bisexual flowers but they seldom produce fruits. On the other hand,a tomato plant produces plenty of fruits though they have small flowers. Analyze the reasons for the failure of fruit formation in rose.

Name the parts of an angiosperm flower in which development of male and female gametophyte take place.

Match the following columns:

Column-$I$ (Organisms)	Column-$II$ (Chromosome number in meiocytes)
$P$. Housefly	$I$. $38$
$Q$. Rat	$II$. $42$
$R$. Dog	$III$. $12$
$S$. Cat	$IV$. $78$
$T$. Fruit fly	$V$. $8$

Which of the following statements is incorrect?

What type of gametes are found in $Capsella$?