Team 1
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Team 2
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Teams
Name
Score
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15
×
Which is visible — genotype or phenotype?
Phenotype
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15
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If both parents are Bb, what are the possible genotypes of their offspring?
BB, Bb, bb
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lifesaver
Give 20 points!
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fairy
Take points!
5
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25
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shark
Other team loses 10 points!
Okay!
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thief
Give points!
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15
×
What does a gene carry instructions for?
Making a protein or controlling a trait
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15
×
Why does a heterozygous individual show the dominant trait?
The dominant allele masks the recessive one
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15
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How do you write a genotype for a recessive trait?
Using two lowercase letters, e.g. bb
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banana
Go to last place!
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rocket
Go to first place!
Okay!
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shark
Other team loses 15 points!
Okay!
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banana
Go to last place!
Oops!
15
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If a child shows a recessive trait, what do we know about the parents?
They both carried at least one recessive allele
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monster
Reset all scores!
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fairy
Take points!
5
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25
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fairy
Take points!
5
10
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20
25
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thief
Give points!
5
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20
25
15
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What information do you need to set up a Punnett square?
The genotypes of both parents
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15
×
What happens when a dominant allele is present?
It is always expressed
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15
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What is the phenotype of a mouse with alleles bb for fur colour (b = white)?
White fur
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15
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If an organism’s alleles are Bb, what is its genotype?
Bb
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15
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Does a Punnett square predict exact offspring, or probabilities?
Probabilities
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15
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If an organism’s genotype is Tt, is it heterozygous or homozygous?
Heterozygous
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15
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Give an example of two alleles for eye colour
Brown (B) and blue (b)
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