X Chromosome (1336 Genes)

Female Male

Inactive X Chromosome (“Barr Body”)

Fig. 7-9

Embryo

PaternalX chromosomeinactivated

MaternalX chromosomeinactivated

Anhidrotic Ectodermal Dysplasia

Fig. 7-12

G C C T A C G A T TC G G A T G C T A A

G C C T A C G A T TC G G A T G C T A A

G C C T A C G A T TC G G A T G C T A A

G C C T A C G A T TC G G A T G C T A A

Reciprocal Translocation

Non-Reciprocal Translocation

Translocation in CML

Blood Cell Formation

21

14

14;21 Translocation

21

14;21

14

FamilialDown Syndrome

Karyotype of offspring

Cri-du-Chat Karyotype

Cancer Cell Karyotype

Phenotypic Characteristics of Mendel’s Pea Plants

Fig. 3-1

Fig. 3-11

Gg

Meiosis andMendel’s Law of Segregation

G g

Fig. 3-11

Meiosis andMendel’s Law ofIndependentAssortment

GWGw

gW

gw

Gg/Ww

Pedigree Symbols

Fig. 3-13

Fig. 3-14

Fig. 3-14

Phenotypic Characteristics of Mendel’s Pea Plants

Fig. 3-1

Fig. 3-11

Meiosis andMendel’s Law ofIndependentAssortment

GWGw

gW

gw

Gg/Ww

D allele

Gibberellin

Fig. 3-11

Meiosis andMendel’s Law ofIndependentAssortment

GWGw

gW

gw

Gg/Ww

d allele

Gibberellin

Fig. 3-11

Meiosis andMendel’s Law ofIndependentAssortment

GWGw

gW

gw

Gg/Ww

GenotypeDD or Dd

Fig. 3-11

Meiosis andMendel’s Law ofIndependentAssortment

GWGw

gW

gw

Gg/Ww

Genotype dd

H substancePrecursor

H substance

“A” AntigenA Blood Group

H substancePrecursor

H substance

“B” Antigen

B Blood Group

“B” Antigen

“A” AntigenAB Blood Group

Pedigree for “Bombay” Phenotype

Fig. 4-3

Fig. 4 - 8

F2 Ratios Observed in Epistasis

*

*

**

*

*

Recessive Epistasis

Dominant Epistasis

X Linked Pedigree

I

II

III

Coat Color Phenotype

1 : 2 : 1Fig. 4 -1

Continuous Variation

Tall Short

Fig. 24 -2

Fig. 24 - 3

Phenotypic Classes

5

7

9

11

Number of Genes

2

3

4

5