When an organism has two different alleles it is called
heterozygous / hybrid
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10
If there is a 100% chance that the children produced by two parents will have the recessive trait of BLUE eyes, what MUST the genotypes of the parents be?
Homozygous recessive (bb & bb)
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10
The physical appearance of an organism is called its
phenotype
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On a Punnett square, who is represented by the genotypes OUTSIDE the box?
the parents
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10
This allele is only expressed in the homozygous form. Two alleles must be present for it to show up.
recessive
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seesaw
Swap points!
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magnet
Take 15 points!
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gift
Win 20 points!
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baam
Lose 20 points!
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10
The genetic makeup of an organism is called its
genotype
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This allele always takes over and is expressed in the offspring
dominant
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10
When an organism has two identical alleles it is called
homozygous / purebred
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lifesaver
Give 25 points!
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fairy
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5
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25
fairy
Take points!
5
10
15
20
25
baam
Lose 5 points!
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10
On a Punnett square, who is represented by the genotypes INSIDE the boxes?
Possible offspring / children
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seesaw
Swap points!
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seesaw
Swap points!
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fairy
Take points!
5
10
15
20
25
lifesaver
Give 20 points!
Oops!
10
This tool is used to predict the possible genotypes and phenotypes of the offspring of two parents