what causes the differences in physical characteristics like hair color among people?\no different versions…

what causes the differences in physical characteristics like hair color among people?\no different versions of genes\no variations in dna length\no different numbers of chromosomes\no variations in cell nucleus size

what causes the differences in physical characteristics like hair color among people?\no different versions of genes\no variations in dna length\no different numbers of chromosomes\no variations in cell nucleus size

Answer

Brief Explanations:

Genes are segments of DNA that carry instructions for building and maintaining an organism. Different versions of genes, called alleles, can result in variations in physical traits like hair color. Variations in DNA length, chromosome number, and cell - nucleus size are not the main causes of differences in hair color.

Answer:

different versions of genes