Slide 1

Figure 11.2Page 178

Slide 2

A pair of homologous chromosomes

A gene locus

A pair of alleles

Three pairs of genes

Figure 11.4Page 179

Slide 3

Aa

fertilization produces heterozygous offspring

AA

AA

aa

aa

meiosis I

A A A A a a a a

meiosis II

gametes

Stepped Art

Figure 11.4Page 180

AA

A

AA

aa

aa

aa

(chromosomes duplicated before

meiosis)

Homozygous dominant parent

Homozygous recessive parent

A

Slide 4

Trait Studied

Dominant Form

Recessive Form

F2 Dominant-to- Recessive Ratio

SEED SHAPE

SEED COLOR

POD SHAPE

POD COLOR

FLOWER COLOR

FLOWER POSITION

STEM LENGTH

2.96:1

3.01:1

2.95:1

2.82:1

3.15:1

3.14:1

2.84:1787 tall 277 dwarf

651 long stem 207 at tip

705 purple 224 white

152 yellow428 green

299 wrinkled882 inflated

6,022 yellow 2,001 green

5,474 round 1,850 wrinkled

Figure 11.5Page 180

Slide 5

POSSIBLE EVENT: PROBABLE OUTCOME:

sperm A meets egg A sperm A meets egg a sperm a meets egg A sperm a meets egg a

1/4 AA offspring 1/4 Aa 1/4 Aa 1/4 aa

In-text figurePage 178

Slide 6

aA

aaAa

A

a

aA

aaAa

AaA

a

aA

aaAa

AaAAA

a

aA

a aa

A

female gametes

mal

e g

amet

es

Stepped Art

Figure 11.6Page 181

Slide 7

True-breedinghomozygous recessiveparent plant

True-breedinghomozygous dominantparent plant

An F1 plantself-fertilizesand producesgametes:

F1 PHENOTYPES

F2 PHENOTYPES

aa

Aa

AA

aaAa

Aa

Aa Aa

Aa Aa

Aa Aa

Aa Aa

Aa

Aa

AA

aa

A

A

A

A

a a

a

a

AA

Figure 11.7Page 181

Slide 8

AABB aabb

x

AaBb

AB AB ab ab

TRUE-BREEDING PARENTS:

GAMETES:

F1 HYBRID OFFSPRING:

purple flowers, tall

white flowers,dwarf

In-text figurePage 182

Slide 9

metaphase IC C C C

D D DD

c c c c

dd d d

OR

C C C C

D D D D

cc cc

dd d d

metaphase II

Stepped Art

Figure 11.8Page 182

1/4 CD 1/4 cd

CCDD

ccd d

gametes1/4 Cd 1/4 cD

CCDD

ccd d

gametes

Slide 10

AB ab

AABBpurple-

floweredtall parent

(homozygousdominant)

aabbwhite-

flowereddwarf parent(homozygous

recessive)

F1 OUTCOME: All F1 plants purple-flowered, tall(AaBb heterozygotes)

X

AaBb

Figure 11.9 (1)Page 183

Slide 11

1/16aabb

white-flowered, dwarf

1/16aaBB

1/16aaBb

1/16aaBb

white-flowered, tall

1/16Aabb

1/16Aabb

1/16AAbb

purple-flowered, dwarf

Stepped Art

Figure 11.9(2)Page 183

purple-flowered, tall1/16

AABB1/16

AABb1/16

AaBB1/16

AaBb

1/16AABb

1/16AaBb

1/16AaBB

1/16AaBb

1/16AaBb

AaBbAaBb

1/4 AB 1/4 Ab 1/4 aB 1/4 ab

1/4AB

1/4Ab

1/4aB

1/4ab

Slide 12

Xhomozygous parent homozygous parent

All F1 are heterozygous

X

F2 show three phenotypes in 1:2:1 ratio

Stepped Art

Figure 11.10Page 184

Slide 13

Range of genotypes:

Blood types:

IA IA

IA i IA IB IB i

IB IB

ii

A AB B O

or or

ABO Blood Typing

Figure 11.11Page 184

Slide 14

Ribbon model for two calcium-binding domains of fibrillin

Figure 11.12Page 185

Slide 15

bbeeBBEE X

F1 puppies are all BbEe

BBEE

BBEe

BbEE

BbEe Bbee

BbEe

Bbee

BBEe BbEE BbEe

BBee BbEe

bbeebbEe

bbEE bbEe

BE Be bE be

BE

Be

bE

be

black

brown

yellow

F2 puppies

Stepped Art

Figure 11.13Page 186

Slide 16

9/16 walnut 3/16 rose 3/16 pea 1/16 singlerrpp

RRpp(rose comb)

rrPP(pea comb)

RrPp (all walnut comb)

P:

F2:

F1:

X

RRPPRRPpRrPPRrPp

RRppRrpp

rrPPrrPp

Comb Shape in Poultry

Figure 11.15Page 187

Slide 17

Range of values for the trait

Nu

mb

er o

f in

div

idu

als

wit

hso

me

valu

e o

f th

e tr

ait

line of bell-shaped curve indicates continuous variation in population

Figure 11.17bPage 189

Slide 18

Stepped Art

Figure 11.18Page 190

Slide 19

Hei

gh

t (c

enti

me

ters

)H

eig

ht

(cen

tim

ete

rs)

Hei

gh

t (c

enti

me

ters

)

60

60

60

0

0

0

Mature cutting at medium elevation (1,400 meters)

Mature cutting at high elevation (3,050 meters)

Mature cutting at low elevation (30 metersabove sea level)

Figure 11.19Page 190