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Figure 11.2
Page 178
Slide 1
A pair of homologous
chromosomes
A gene locus
A pair of alleles
Three pairs of genes
Figure 11.4
Page 179
Slide 2
Homozygous
recessive parent
Homozygous
dominant parent
A
a
A
a
(chromosomes
duplicated before
meiosis)
A
A
A
a
A
a
a
a
meiosis I
A
A
A
a
A
a
a
a
meiosis II
A
A
A
a
A
a
a
a
gametes
A
a
fertilization produces
heterozygous offspring
Stepped Art
Figure 11.4
Page 180
Slide 3
Trait
Studied
Dominant Recessive
Form
Form
F2 Dominant-toRecessive Ratio
SEED
SHAPE
5,474 round 1,850 wrinkled
2.96:1
SEED
COLOR
6,022 yellow
2,001 green
3.01:1
POD
SHAPE
882 inflated
299 wrinkled
2.95:1
POD
COLOR
428 green
152 yellow
2.82:1
FLOWER
COLOR
705 purple
224 white
3.15:1
FLOWER
POSITION
651 long stem
207 at tip
3.14:1
STEM
LENGTH
787 tall
277 dwarf
2.84:1
Figure 11.5
Page 180
Slide 4
POSSIBLE EVENT:
sperm A meets egg A
sperm A meets egg a
sperm a meets egg A
sperm a meets egg a
PROBABLE OUTCOME:
1/4 AA offspring
1/4 Aa
1/4 Aa
1/4 aa
In-text figure
Page 178
Slide 5
female gametes
male gametes
A
a
A
a
A
a
A
aa
a
A
A
Aa
aa
a
Aa
a
A
a
Aa
A
AA
Aa
aa
a
Aa
aa
Stepped Art
Figure 11.6
Page 181
Slide 6
True-breeding
homozygous recessive
parent plant
F1
PHENOTYPES
aa
True-breeding
homozygous dominant
a
parent plant
Aa
Aa
Aa
Aa
a
A
Aa
Aa
A
Aa
Aa
AA
An F1 plant
self-fertilizes
and produces
gametes:
F2
PHENOTYPES
Aa
A
A AA
a
Aa
AA
Aa
Aa
aa
a
Aa
aa
Figure 11.7
Page 181
Slide 7
TRUEBREEDING
PARENTS:
purple
flowers,
tall
x
white
flowers,
dwarf
AABB
GAMETES:
AB
aabb
AB
ab
ab
AaBb
F1 HYBRID
OFFSPRING:
In-text figure
Page 182
Slide 8
OR
C c
c
D
Dd
d
metaphase I
C
C
c
c
D
D
d
d
D
D
C
C
C
d
c
1/4 CD
gametes
metaphase
II
1/4 cd
Cc
c
d
d D
D
C
C
c
c
d
d
D
D
d
d
c
C
C
d
C
D
c
1/4 Cd
D
c
1/4 cD
gametes
Stepped Art
Figure 11.8
Page 182
Slide 9
AABB
purpleflowered
tall parent
(homozygous
dominant)
AB
X
ab
aabb
whiteflowered
dwarf parent
(homozygous
recessive)
F1 OUTCOME: All F1 plants purple-flowered, tall
(AaBb heterozygotes)
AaBb
Figure 11.9 (1)
Page 183
Slide 10
AaBb
AaBb
1/4 AB 1/4 Ab 1/4 aB
1/4 ab
1/4
AB
1/16
AABB
1/16
AABb
1/16
AaBB
1/4
Ab
1/16
AABb
1/16
AAbb
1/16
AaBb
1/16
Aabb
1/16
AaBB
1/16
AaBb
1/16
aaBB
1/16
aaBb
1/16
AaBb
1/16
Aabb
1/16
aaBb
1/16
aabb
1/4
aB
1/4
ab
1/16
AaBb
purple-flowered, tall
purple-flowered, dwarf
white-flowered, tall
white-flowered, dwarf
Stepped Art
Figure 11.9(2)
Page 183
Slide 11
homozygous parent
homozygous parent
X
All F1 are heterozygous
X
Stepped Art
Figure 11.10
Page 184
F2 show three phenotypes in 1:2:1 ratio
Slide 12
ABO Blood Typing
Range of genotypes:
Blood
types:
IA IA
IB IB
or
or
IA i
IA IB
IB i
ii
A
AB
B
O
Figure 11.11
Page 184
Slide 13
Ribbon model for two calcium-binding domains of fibrillin
Figure 11.12
Page 185
Slide 14
BBEE
X
bbee
F1 puppies are all BbEe
F2 puppies
BE
Be
bE
be
BE
BBEE
BBEe
BbEE
BbEe
Be
BBEe
BBee
BbEe
Bbee
bE
BbEE
BbEe
bbEE
bbEe
be
BbEe
Bbee
bbEe
bbee
black
brown
yellow
Stepped Art
Figure 11.13
Page 186
Slide 15
Comb Shape in Poultry
P:
RRpp
(rose comb)
X
rrPP
(pea comb)
F1:
RrPp (all walnut comb)
F2 :
9/16 walnut
RRPP
RRPp
RrPP
RrPp
3/16 rose
RRpp
Rrpp
3/16 pea
rrPP
rrPp
1/16 single
rrpp
Figure 11.15
Page 187
Slide 16
Number of individuals with
some value of the trait
line of bell-shaped
curve indicates
continuous variation
in population
Range of values for the trait
Figure 11.17b
Page 189
Slide 17
Stepped Art
Figure 11.18
Page 190
Slide 18
Height (centimeters)
Mature
cutting at
medium
elevation
(1,400
meters)
Height (centimeters)
Mature
cutting
at high
elevation
(3,050
meters)
60
60
0
Mature
cutting
at low
elevation
(30 meters
above
sea level)
Height (centimeters)
0
60
0
Figure 11.19
Page 190
Slide 19