1
Mutations and mixing of alleles during sexual reproduction cause this
2
Organisms with the better genes survive and those alleles get passed on to the offspring
3
A chart that shows all the possible combinations of alleles that occur from a genetic cross
4
An organism that has the same allele for a trait on each chromosome pair.
5
The physical appearance of a trait.
7
The code that both alleles encode for on each chromosome pair.
8
An organism that has two different alleles for a trait on each chromosome pair
9
A change in a gene/allele that causes a new allele to be formed that can be passed to the offspring
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