Which of the following statements are incorrect regarding genes?

(i) They control the transfer of hereditary characters.

(ii) Nucleolus carry genes.

(iii) They are part of chromosomes

(iv) They are found only in the nucleus

Genes are the units of inheritance located in the chromosomes. The nucleus is located in cells but not cell is located in the nucleus. Chromosomes are present in the nucleus, not nucleolus. The nucleus is surrounded by nucleus membrane, not cell membrane.