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Genetics Jeopardy
Mendelian Exceptions to
Mendel
Inheritance
Genetic
Disorders
Gene
Expression
Diagrams
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Final Jeopardy
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The allele that is not expressed in a
heterozygous individual.
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What is recessive?
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The phenotypic ratio from a cross between two
F1 (heterozygous) individuals.
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What is 3:1 (dominant:recessive)
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Mendel’s law of inheritance that states that an
individual has an equal chance of inheriting a
dominant allele or a recessive allele from a
heterozygous parent.
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What is the law of segregation?
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The genotype of the unknown individual in a
test cross if at least one the offspring from the
cross displays the recessive phenotype.
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What is heterozygous?
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The phenotypic ratio from a cross between a
fruit fly with a grey body and red eyes
(genotype BbPp) and a fly with a black body and
purple eyes (genotype bbpp) if the genes are on
different chromosomes (not linked).
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What is 25% grey/red, 25% grey/purple, 25%
black/red, 25% back/purple?
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A cross between a red snapdragon and a white
snapdragon produces pink snapdragons.
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What is incomplete dominance?
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A person with blood type A and person with
blood type B have a child with blood type AB.
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What is codominance?
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The reason why phenotypes for traits like
height, skin color, and intelligence vary
continuously.
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What is polygenic inheritance?
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A cross between a red-eyed male fruit fly and a
white-eyed female fruit fly produces half redeyed flies and half white-eyed flies. But all the
red-eyed flies are female and all the white-eyed
flies are male.
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What is sex (or X) linkage.
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Females must inherit two copies of baldness
allele to be bald while males only need to inherit
one copy to be bald (baldness is not sex-linked).
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What is sex-influenced trait?
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Any chromosomal syndrome caused by the
inheritance of one extra chromosome.
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What is trisomy?
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A heritable condition that results in mental
retardation due to the build of the amino acid
phenylalanine in the brain. Can be controlled by
avoiding phenylalanine in the diet.
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What is phenylketonuria?
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The allele of a disorder when the affected
individual inherits it from unaffected parents.
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What is recessive?
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The probability that a female carrier for
hemophilia and a normal male will have a child
with hemophilia.
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What is 25%
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The genotype of individual II-2 on the red-green
colorblindness pedigree below (colorblindness is
sex linked recessive)
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What is XRXr (or heterozygous or a carrier)?
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Used viruses made up of radioactive phosphorus
and sulfur to determine that DNA, and not
protein, is the genetic material.
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Who are Hershey and Chase?
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The name of the group of enzymes responsible
for adding free nucleotides to a DNA template
strand during DNA replication or transcription.
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What are polymerases?
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The mRNA sequence that transcription would
produce from the DNA strand: GATTACA
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What is CUAAUGU?
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The two types of mutations that produce
frameshifts.
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What are insertions and deletions?
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The recognition sequence of the restriction
enzyme Eco R1 that produced the following
restriction fragments:
Original Strand: GAATTGGAGAATTCGATTGAATTC
Treated Strand: GAATTGGAG AATTCGTTG AATTC
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What is GAATTC, cutting between G and A?
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What is a Down Syndrome (or Trisomy 21)
karyotype?
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What is DNA replication?
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What is nondisjunction (during meiosis I)?
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What is the law of independent assortment?
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What is an autosomal recessive pedigree?
Final Jeopardy
The amino acid sequence produced by the
following DNA sequence with the additional
information.
GATCTATTATACCCCGGGGTGCATTGCA
 Promoter region is TTA
 Intron at GGGG
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What is MET – GLY – THR?