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Middle School: 6th, 7th and 8th Grade
Biology
Construct Genetic Diagrams
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Q.1
Which of the following is an example of a heterozygous genotype?
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TT
0%
CC
0%
Tt
0%
Tc
Q.2
Alleles are different forms of the same...
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allele
0%
gene
0%
code
0%
egg
Q.3
What does homozygous mean?
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That the alleles are the same
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That the alleles are different
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That the alleles are varied
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That the alleles are mutated
Q.4
'Tall' is an example of which of the following?
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A genotype
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An allele
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A gene
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A phenotype
Q.5
Which word describes TT?
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Heterozygous
0%
Heterogametic
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Homozygous
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Homogametic
Q.6
Which word describes Tt?
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Heterozygous
0%
Homozygous
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Heterogametic
0%
Homogametic
Q.7
What is the ratio of Tall:short if Tt is crossed with tt? Use a genetic diagram to predict the outcome.
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2:1
0%
3:1
0%
4:1
0%
1:1
Q.8
Genotype describes which of the following?
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All alleles present in a population
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One allele
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Alleles present in a single organism, for a particular feature
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Four genes
Q.9
Using a Punnett square, predict the ratio of tall to short when Tt is crossed with Tt. The allele for tall is T and the allele for short is t.
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2:1
0%
4:1
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3:1
0%
1:1
Q.10
Phenotype is the expression of what?
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The face
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The genotype
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The eyes
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The zygote
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