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What causes the differences in physical characteristics like hair color among people? 1. diferent versions of genes 2. variations in DNA length 3. different numbers of chromosomes 4. variations in cell
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4 votes
What causes the

differences in physical characteristics like hair color among people?
1. diferent versions of genes
2. variations in DNA length
3. different numbers of chromosomes
4. variations in cell nucleus size

User Aaron Liu
by
7.6k points

2 Answers

2 votes

Answer:

b

Step-by-step explanation:

i took the test

User German Rumm
by
8.5k points
5 votes
DNA
sorry if it’s wrong, but that answer seems reasonable
User Dorian Roy
by
7.5k points
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