Genes are made of DNA and are arranged on 23 pairs of chromosomes, located in the cell nucleus.
(Genes; are made; of DNA) (Genes; are arranged; L:on 23 pairs of chromosomes) (23 pairs of chromosomes; located; L:in the cell nucleus)
Genes Genes 23 pairs of chromosomes
are made are arranged located
of DNA
L:on 23 pairs of chromosomes
L:in the cell nucleus