Transcript What is the genotype for a pink snapdragon flower?

What type of inheritance do
snapdragon flowers have?
Incomplete dominance
What is the genotype for a red
snapdragon flower?
RR
What is the genotype for a white
snapdragon flower?
R’R’
What is the genotype for a pink
snapdragon flower?
RR’
Show a cross between a red
snapdragon and a white
snapdragon.
R
R
R’
RR’
RR’
R’
RR’
RR’
Show a cross
between a pink
snapdragon and a
white snapdragon.
R
R’
R’
RR’
R’R’
R’
RR’
R’R’
What are the genotype and
phenotype ratios for a cross
between a red snapdragon and a
pink snapdragon?
R
R
R
R’
RR
RR’
RR
RR’
2:2:0
2:2:0
What are the genotype and
phenotype ratios for a cross
between a pink snapdragon and a
pink snapdragon?
R
R’
R
R’
RR
RR’
RR’
R’R’
1:2:1
1:2:1
What two types of non-mendelian
inheritance is human blood type an
example of?
Multiple Alleles
Codominance
Cross a man with AB blood and a
woman with O blood.
What are the possible phenotypes of
the offspring?
A and B
A
B
O
AO
BO
O
AO
BO
Cross a man with homozygous A
blood and woman with homozygous
B blood.
What are the possible phenotypes
of the offspring?
A
A
B
AB
AB
B
AB
AB
AB
Cross a man with heterozygous A
blood and a woman with O blood.
What are the possible phenotypes
of the offspring?
A and O
A
O
O
AO
OO
O
AO
OO
Is it possible for a woman with type
A blood to have a baby with type AB
blood?
If it is possible, show the cross.
YES
A
B
AB
Is it possible for a woman with type
O blood to have a baby with type AB
blood?
If it is possible, show the cross.
NO
O
O
O
O
O
O
Is it possible for a woman with type
O blood to have a baby with type A
blood?
If it is possible, show the cross.
YES
A
O
AO
O
AO
Is it possible for a woman with type
A blood to have a baby with type B
blood?
If it is possible, show the cross.
B
A
O
AB
BO
Color shows codominant inheritance
in a species of mice. Show a cross
between a white mouse and a black
mouse.
B
B
W
BW
BW
W
BW
BW
What are the genotype and
phenotype ratios for a cross
between a black mouse and a
spotted mouse?
B
W
B
B
BB
BB
BW
BW
2:2:0
2:2:0
What are the genotype and
phenotype ratios for a cross
between two spotted mice?
B
W
B
W
BB
BW
BW
WW
1:2:1
1:2:1
What are the genotype and
phenotype ratios for a cross
between two white mice?
W
W
W
W
WW
WW
WW
WW
0:0:4
0:0:4
What type of inheritance pattern is
shown?
B
b
B
BB
Bb
b
Bb
bb
Mendelian,
or
complete
dominance
What would the hybrid look like?
Shows
dominant
trait
What type of inheritance pattern is
shown?
B
B’
B
BB
BB’
B’
BB’
B’B’
Incomplete
dominance
What would the hybrid look like?
Shows blend of
parental traits
What type of inheritance pattern is
shown?
B
T
B
BB
BT
T
BT
TT
Codominance
What would the hybrid look like?
Both traits are
expressed
What type of inheritance do human
eyes exhibit?
Polygenic Inheritance
What type of inheritance does
albinism exhibit?
Pleiotropy
What type of inheritance does
human height exhibit?
Polygenic Inheritance
What type of inheritance does beard
growth exhibit?
Sex Limited
What type of inheritance does
baldness exhibit?
Sex Influenced
A woman who carries the trait
for baldness would expect
what percent of her sons to
express this trait?
It depends on dad! 50%
would get the gene from her.
B
b
?
B?
?b
?
B?
?b
Show a cross between a
healthy male and a colorblind
female.
b
X
b
X
B
X
B
b
X X
B
b
X X
Y
b
X Y
b
X Y
Is it possible for a healthy man
to have a child who has
hemophilia?
YES
h
X
H
X
Y
h
X Y
Is it possible for a healthy, non
carrier woman to have a child
who has hemophilia?
NO
H
X
H
X
Y
H
X Y
H
X
H
X
H
X Y
Duchenne’s Muscular
Dystrophy is passed down in
what inheritance pattern?
Sex Linked
A carrier of sickle cell anemia has
some blood cells that are normal
(biconcave) shape and some that
are sickle shape. What type of
inheritance is this an example of?
Codominance
Gout is a disorder that results
in painful joint swelling. If
present, it is 8 times as likely
to be expressed in males as it
is in females. What type of
inheritance pattern is this an
example of?
Sex Influenced
A non-sex chromosome
Autosome
Abominable snowmonsters can
have blue hands, black hands or
yellow hands. If this trait is
codominant, what color hands
would you expect if you crossed a
yellow with a blue?
Blue and
yellow
A species of deer show incomplete
dominance in their height. If a
medium deer was crossed with a
short deer, how tall would the
offspring be?
50% short,
50% medium
You have brown and white rabbits,
grey and white rabbits and solid
brown rabbits. If this trait is
codominant, how would you breed
solid white rabbits?
BW x GW
This rose can be pink, peach or
what you see in the picture below.
What type of inheritance pattern is
this an example of?
Codominance
Grizzly bear claws can be black,
white or grey. What is the genotype
of the bear pictured below?
BB’
Achondroplasia
is the result of a
single gene
which effects
many
characteristics.
It is an example
of what type of
inheritance
pattern?
pleiotropy
Normally fruit flies have red eyes.
Occasionally flies will have white
eyes. This almost exclusively
occurs in males. What type of
inheritance does this most likely
follow?
Sex linked
Mom
+ Dad
= Baby
What type
of
inheritance
pattern
does this
show?
Mendelian
(complete
dominance)
with blue
legs being
recessive.