Transcript Bio_genetics_jeopardy_2015

Mendel & Heredity
Mendel
Genotypes &
Phenotypes
Punnett
squares
Terminology
Odds & Ends
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FINAL ROUND
Mendel:
$100 Question
Mendel is often known as the father of
____________.
ANSWER
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Mendel :
$100 Answer
Mendel is often known as the father of
Genetics.
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Mendel :
$200 Question
Mendel chose to study what model
organism?
ANSWER
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Mendel
$200 Answer
Mendel chose to study what model
organism?
PEAS
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Mendel :
$300 Question
Dominant alleles are represented by
a______________ letter.
ANSWER
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Mendel :
$300 Answer
Dominant alleles are represented by
a Capital letter.
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Mendel :
$400 Question
Recessive traits/alleles are always
represented with a ____________ letter.
ANSWER
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Mendel :
$400 Answer
Recessive traits/alleles are always
represented with a lower case letter.
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Mendel :
$500 Question
An individual that posses two of the same
allele is considered to be:____________ for
that trait.
ANSWER
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Mendel :
$500 Answer
An individual that posses two of the same
allele is considered to be:Homozygous for
that trait.
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Genotypes & Phenotypes:
$100 Question
What is a genotype?
ANSWER
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Genotypes & Phenotypes :
$100 Answer
A genotype is: the set of alleles that an
individual has for a character, the types of
genes.
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Genotypes & Phenotypes :
$200 Question
What is a phenotype?
ANSWER
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Genotypes & Phenotypes :
$200 Answer
A phenotype is: the physical appearance
of a character.
*Hint: Think Ph for phenotype & physical
This is what an organism looks like.
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Genotypes & Phenotypes :
$300 Question
Given that: H=Hairy
h=no hair
Write the genotype & phenotype of an
individual that is homozygous dominant for
the hair gene.
ANSWER
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Genotypes & Phenotypes :
$300 Answer
H=Hairy
h=no hair
Write the genotype & phenotype of an individual
that is homozygous dominant for the hair gene.
Genotype: HH
Phenotype: Hairy
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Genotypes & Phenotypes :
$400 Question
H=Hairy
h=no hair
Write the genotype & phenotype of an
individual that is heterozygous for the hair
gene.
ANSWER
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Genotypes & Phenotypes :
$400 Answer
H=Hairy
h=no hair
Write the genotype & phenotype of an individual
that is heterozygous for the hair gene.
Genotype:Hh
Phenotype: Hairy
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Genotypes & Phenotypes :
$500 Question
H=Hairy
h=no hair B=big feet b= normal feet
Write the genotype & phenotype of an
individual that is heterozygous for both traits.
Think Dihybrid!
ANSWER
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Genotypes & Phenotypes :
$500 Answer
H=Hairy
h=no hair B=big feet b= normal feet
Write the genotype & phenotype of an individual that is
heterozygous for both traits.
Genotype:HhBb
Phenotype: Hairy & Big feet
Remember to keep the Hs and Bs together, capital
goes first in each set (Big “B” before little “b”)
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Punnett Squares:
$100 Question
A cross that looks only at one trait is
known as a __________, while a cross
that looks at two traits is known as a
__________ cross.
ANSWER
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Punnett Squares :
$100 Answer
A cross that looks only at one trait is
known as a Monohybrid, while a cross that
looks at two traits is known as a Dihybrid
cross.
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Punnett Squares :
$200 Question
H=Hairy
h=no hair
Complete a Punnett square for a cross
between A homozygous dominant
individual and a homozygous recessive
individual.
Give the genotypic & phenotypic ratio of
this cross
ANSWER
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Punnett Squares :
$200 Answer
H=Hairy
h=no hair
Complete a Punnett square for a cross between A
homozygous dominant individual and a homozygous
recessive individual.
Phenotypic
H
H
Ratio:
100% Hairy
h
Hh
individuals
Hh
h
Hh
Hh
Genotypic
Ratio:
100% Hh
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Punnett Squares :
$300 Question
H=Hairy
h=no hair
Complete a Punnett square for a cross
between A homozygous recessive
individual and a heterozygous individual.
Give the genotypic & phenotypic ratio of
this cross
ANSWER
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Punnett Squares :
$300 Answer
H=Hairy
h=no hair
Complete a Punnett square for a cross between A
homozygous recessive individual and a heterozygous
individual.
Phenotypic Ratio:
1:1 (Hairy : No Hair)
H
h
h
h
Hh
Hh
hh
Genotypic Ratio:
1:1 (Hh:hh)
hh
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Punnett Squares :
$400 Question
In Bigfoots:
H=Hairy
h=no hair
B=Big Feet b= normal feet
Complete a Punnett square for a cross between an
individual homozygous recessive for both traits and an
individual heterozygous for both traits.
Give the Phenotypic Ratio
ANSWER
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Punnett Squares :
$400 Answer
Parental Genotypes: HhBb x hhbb
HB
hb
HhBb
Hb
Hhbb
hB
hb
hhBb
hhbb
Phenotypic Ratio: 1:1:1:1
(Hairy/Bigfeet:Hairy/normal feet: no
hair/big feet : no hair: normal feet)
hb
hb
Genotypic Ratio: 1:1:1:1
(HhBb:Hhbb:hhBb:hhbb)
hb
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Punnett Squares :
$500 Question
In Bigfoots:
H=Hairy
h=no hair
B=Big Feet b= normal feet
Complete a Punnett square for a cross between
two individuals heterozygous for both traits.
1.Write the Parental Genotypes
2.Give the Phenotypic Ratio
ANSWER
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Punnett Squares :
$500 Answer
Parental Genotypes: HhBb x HhBb
HB
HB
Hb
HHBB
HHBb
Hb
HHBb
HHbb
hB
hb
HhBB
HhBb
HhBb
Hhbb
hB
HhBB
HhBb
hhBB
hhBb
hb
HhBb
HhBb
hhBb
hhbb
Phenotypic Ratio: 9:3:3:1
(Hairy/Bigfeet:Hairy/normal feet: no
hair/big feet : no hair: normal feet)
Genotypic Ratio:
4:2:2:2:2:1:1:1:1
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Terminology:
$100 Question
A ________ is the diagram used to predict
the outcomes of genetic crosses.
ANSWER
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Terminology:
$100 Answer
A Punnett Square is the diagram used to
predict the outcomes of genetic crosses.
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Terminology:
$200 Question
A __________ is often prepared by
geneticists, and represents a family history
that shows how a trait is inherited.
ANSWER
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Terminology:
$200 Answer
A Pedigree is often prepared by
geneticists, and represents a family history
that shows how a trait is inherited.
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Terminology:
$300 Question
Mendel insured that all his parent plants
were ____________individuals, that is the
offspring would all display only one form of
the character.
This term is the same as saying an
individual is homozygous.
ANSWER
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Terminology:
$300 Answer
Mendel insured that all his parent plants
were Pure/TRUE Breeding individuals,
that is the offspring would all display only
one form of the character.
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Terminology:
$400 Question
__________ is when more than two
different alleles exist for a gene.
ANSWER
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Terminology:
$400 Answer
Multiple alleles is when more than two
different alleles exist for a gene.
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Terminology:
$500 Question
An individual heterozygous for a sex-linked
trait is known as a ______________.
Only _________ can be this.
ANSWER
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Terminology:
$500 Answer
An individual heterozygous for a sexlinked trait is known as a Carrier.
Only Females can be this.
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Odds & Ends:
$100 Question
A characteristic that appears in every
generation of offspring is called a
____________ characteristic.
ANSWER
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Odds & Ends :
$100 Answer
A characteristic that appears in every
generation of offspring is called a
Dominant characteristic.
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Odds & Ends :
$200 Question
Crossing individuals and looking at two
traits is known as a ___________ cross.
ANSWER
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Odds & Ends :
$200 Answer
Crossing individuals and looking at two
traits is known as a Dihybrid cross.
Note: You could also
have used a capital “L”
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Odds & Ends :
$300 Question
Crossing an individual with dominant
phenotype, but an unknown genotype
with a homozygous recessive individual
is known as a _____ cross.
ANSWER
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Odds & Ends :
$300 Answer
Crossing an individual with dominant
phenotype, but an unknown genotype with a
homozygous recessive individual is known as a
Test cross.
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Odds & Ends :
$400 Question
A gene or trait that is typically coded for on
the “X” chromosome is known as a
______________ trait.
ANSWER
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Odds & Ends :
$400 Answer
A gene or trait that is typically coded for on
the “X” chromosome is known as a sexlinked trait.
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Odds & Ends :
$500 Question
Describe how the inheritance of sex-linked, or
X-linked traits is different in men & women.
For women who can the trait come from?
For men who can the trait come from?
ANSWER
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Odds & Ends :
$500 Answer
Describe how the inheritance of sex-linked, or Xlinked traits is different in men & women.
For women who can the trait come from?
Can be inherited from mom or dad
For men who can the trait come from?
Can only be inherited from their mom because
dad has to give them the “Y” chromosome.
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FINAL ROUND Question
What is the difference between
incomplete dominance/intermediate
inheritance and co-dominance?
Give an example of EACH!
ANSWER
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FINAL ROUND Answer
What is the difference between
incomplete dominance/intermediate
inheritance – is where there is a
blending of traits (ex. Tall & short
make medium, or red & white make
pink.
co-dominance- is where both traits are
expressed/ show up in the
heterozygote (ex. Red & white make
red & white spotted)
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