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3 votes
What causes the differences in physical characteristics like hair color among people?

different versions of genes
variations in DNA length
different numbers of chromosomes
variations in cell nucleus size

2 Answers

6 votes

Answer:

A

Step-by-step explanation:

Different versions of genes

answered
User David Makogon
by
7.5k points
5 votes

Answer:

The answer is A. different versions of genes

answered
User Binarez
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