chromosomes
The nucleus of each sex cell(gamete) contains 23 thread like structures called chromos
Genes
Are chemicals found on chromosomes that pass on information from parents to children
Chromosomes are made off
Protein and DNA (carry genes)
DNA
Deoxyribonucleic acid
Human body cells
Have 23 pairs of chromosomes (46 chromosomes)
Genetics
Is the study of the inheritance of characteristics