Download Genetics Jeopardy

Welcome to
Jeopardy!
Today’s Topic:
Genetics
If a boy is colorblind, he
inherited it from…
• A) His mother
• B) His father
• C) Both his mother and father
• D) Unable to determine
The allele of a trait that
always shows up in the F1
generation is said to be…
A.Recessive
B.Dominant
C.Sex Linked
D.True-Breeding
Your phenotype is based on
• A) Your DNA
• B) Your Genotype
• C) Your Environment
• D) Both DNA and Environment
The pedigree below is showing a
recessive sex-linked trait
(colorblindness). What would be the
genotype of III-3?
What is the probability that a new
baby born from I-1 and I-2 will be
colored blind?
If you crossed two
heterozygous individuals, their
offspring would have
• A) 0% Homozygous recessive
• B) 25% Heterozygous
• C) 75% Dominant Phenotype
• D) 50% Recessive Phenotype
Independent assortment
and crossing over increase
• A) The number of offspring
• B) Genetic Linkage
• C) Sex-linked traits
• D) Genetic Diversity
A Red flower is crossed with a
white flower, the offspring are
pink, this is an example of what
kind of dominance?
Two plants are crossed, resulting in
offspring with a 3:1 ratio for a trait.
What does this suggest?
A. That both parents were
heterozygous
B. That each offspring has the same
alleles
C. That the parents were pure breeds
D. That blending of traits occurred.
Using this pedigree, individuals
with the arrows are
• A) Heterozygous
• B) Homozygous Dominant
• C) Homozygous Recessive
• D) Genotype unknown
For a female to have
hemophilia, she must have
• A) a Y chromosome
• B) an inactivated allele
• C) two recessive alleles
• D) two dominant alleles
Name that blood type…..
A
Rh
B
II4 is what relation to III3?
• A) Aunt
• B) Father
• C) Uncle
• D) Nephew
If a mother has blood type A and a
father has blood type B, their children’s
blood types could be________.
• A.
A, B, or O only
• B.
A, B, O, or AB only
• C.
A or B only
• D.
O only
Roan cows are an example of
what type of dominance?
Number 2 is
• A) Homozygous dominant
• B) Heterozygous
• C) Sex-linked
• D) Homozygous Recessive
E
E
e
1
2
E
3
4
A women that is heterozygous
for hemophilia marries a man
who blood clots normally.
A)What is the chance they will have a child that
has hemophilia?
B)What is the chance that they have a daughter
with hemophilia?
C)What about a son?
Two parents have the genotype Gg
for a dominant genetic disorder.
What are the chances their
offspring will have the disorder?
An individual who is
heterozygous for a ______
disorder is called a carrier.
• A) Allele
• B) Albinism
• C) Recessive
• D) Dominant
The alleles from your mother
and father separating into
different gametes is described in
what law?
Name that blood type…..
A
Rh
B
F2:F1 :: F1:___
• A) F2
• B) P2
• C) P
• D) F1
For two heterozygous individuals
the phenotype ratio is _____ and
the genotype ratio is _____.
If a family has 4 girls, what are
the chances of their next child
being a boy?
Mendel’s discoveries came
from his…
• A) Careful microscopic evaluation of
chromosomes and genes
• B) Dissections on how fertilization
occurs in pea plants
• C) Breeding experiments with many
generations of fruit flies
• D) Analysis of offspring from several
crosses of pea plants
Color blindness is recessive and
sex linked. On average there are
more color blind males because
• A. Women need two alleles to be
colorblind
• B. Men require two alleles to be colorblind
• C. Women have two X chromosomes and
it is inherited on the Y chromosome
• D. Men are more likely due to chance
Name that blood type…..
A
Rh
B
Two roan cows are crossed.
What are the phenotype ratio of
the offspring?
BbRr x BbRr are crossed. What
are the phenotype ratio of the
offspring?
• A) 3:1
• B) 1:2:1
• C) 1:1:1:1
• D) 9:3:3:1
Parents, one heterozygous for two
traits and the other homozygous
recessive for two traits,
produce_______ offspring that are
homozygous dominant for both traits
• A) 100%
• B) 75%
• C) 25%
• D) 0%
Straight hair is recessive and curly hair
is dominant. In co-dominance, the
heterozygous condition would be
• A) Curly
• B) Straight
• C) Wavy
• D) Some straight hairs, some wavy
hairs
When an organism has a
heterozygous genotype, the
dominant trait is seen. This can
be explained by which law?
Double Jeopardy!!
Draw a pedigree using the information below. Be sure to
include EVERYTHING that should be in a pedigree. Then
answer the question…
A man and woman marry. They have five children, 2 girls and
3 boys. The mother is a carrier of hemophilia, an X-linked
disorder. She passes the gene on to two of the boys who died
in childhood and one of the daughters is also a carrier. Both
daughters marry men without hemophilia and have 3 children
(2 boys and a girl). The carrier daughter has one son with
hemophilia. One of the non-carrier daughter's sons marries a
woman who is a carrier and they have twin daughters.
What is the percent chance that either of the twins will also be
a carrier?
Give me the genotypes of everyone in the pedigree! (Its sexlinked don’t forget!)