Which bacterium causes the disease syphilis?

$(i)$ $(a)$ Write the full form of $DNA$.
$(b)$ State the role of $DNA$ in the cell nucleus.
$(c)$ What will be the after-effect if the information of the $DNA$ is changed?
$(ii)$ Explain the importance of $DNA$ copying in reproduction.

Give an advantage of vegetative propagation.

In the diagram of the human male reproductive system given below:
$(a)$ Label parts $A$ and $B$.
$(b)$ Name the hormone produced by organ $X$. What is the role of this hormone in the human male?
$(c)$ Mention the name of substances that are transported by tubes:
$(i)$ $C$ and $(ii)$ $D$.

Write true or false for the statement: The development of the child inside the mother's body takes approximately eleven months.

Which of the following is the correct match between List-$I$ and List-$II$?

List-$I$	List-$II$
$1$. Condom	$a$. Female contraceptive device
$2$. Copper-$T$	$b$. Sex determination
$3$. Tubectomy	$c$. Male contraceptive device
$4$. Sonography	$d$. Female surgical procedure for population control