Where are the genes located? What is the chemical nature of a gene?

It is a commonly held misconception that the mother's egg is responsible for determining whether the baby will be a boy or a girl. But actually,it is the father's sperm that decides this. Which of the following makes the sperm the decisive factor?

Farmers generated different vegetables from wild cabbage by artificial selection. Name the vegetables obtained for the following desired traits:
$(i)$ Arrested flower development
$(ii)$ Sterile flowers
$(iii)$ Very short distances between leaves
$(iv)$ Swollen parts
$(v)$ Broader leaves

What indication do we get by the reappearance of dwarf plants in the $F_{2}$ generation?

From the list given below,select the character which can be acquired but not inherited.

Select the incorrect statement.