rearrangement, by unequal crossing-over, I09-l 1.2,
rl0, rlu
tandem, I l2-l ll, ll)f, l16
Gene 4l DNA
polymercse,
447
Gene duplication See
Duplication
Gene expression
activation,
histone acetylation
and, 805-806, 805/
alternative,
46, 46f
in bacteria. ll
control, 102 Sde a/s, Ttanscription; Translation
in bacteria, 302
chromatin structure and,
7 97
in eukaryotic cells, 302
demethylation and, 632-637, 632f, 6)3f
in embryonic development, 53
En element and,
542-544,543f
eukaryotic,
control by of initiation of transcription,
64t-642,642f
inactivation, by antisense RNA, 338-339,
339l
levels of, 92-9),92f
number, 9l
preferential
digestion and, 7 88-7 89, 7 89f
processes
i^, ))-j5, 34f
silent mutations
and, 105
Spm
element and, 542-544, 54)f
stages, transcription See Transcription
systematic analysis, by
RNAi,
344
two-stage
proces
s,
129, 129f.
See 4lJo
Transcription;
Translation
visualization,
direct,
741
Gene families
definition
of, 5I, 99
divergence of repeated sequences, rate of neutral
\ubstilution and, 107, l07f
in human
genome,84-85
members, 99
number of,
genome
size and, 81, 81/
pseudogenes
in, 108-I09
relatedness of members, 99
superfamilies, 5l
Gene 44
prcdnct'
447
Gene 62
products.
447
Gene 12
protein,
326-327, 326f, 327f,
446
Gene 6l
protein,
446447
Gene
protein product,
2
General factors
(basal
factors), 6 I I
Genes
activation,
undermethylation and, 6ll
active
chromosomal domains
and, 7 88-7 89, 7 89f
derermination
of, 65-66
inactive
versions of See Pseudogenes
organizational
patterns
in, 581
on
Y chromosome, 86-87,87f
alternative or overlapping, 53 See
also Alleles
codirrg,23-36
fnrnrntein )L-')\ )af
for
proteins
with
alternative slafts, 4546,46f
for
RNA, 25, 25l
for RNA, identification oI, 67
as coding
unit, 2,
T
colinearity
with
prcre\n,
32-)), 33f
complement, 26
converslon
genetic
recombination and, I I6
interallelic recombination and,
47
547 6,
47 5f
definition of,
2-3
distances
in, )8-)9, 39f
distribution,
in
genome,
85-86, 85f
duplicated
differences
in, 100-l0I
retention of function,
I 15
essential, number of, 89-92,
90f, 9lf
expressed number,
93
in eukaryotes, 80
measurement of
,
9)-94,
94f
extranuclear,68
Iunctional vJ nonfunctional,
102
functions, redundancy
of, 9l
identification
by conservation of exons, 6J-64,
63f-65f
by conservation of
genome
organizaliol].,
65-67,
66f,67f
by
homology with other species,
78-79
imprinted, control of, 834, 834f
inactivation, heterochromatin
extension
and, 82
l,
82rf
interrupted See Interrupted
genes
length of,
j3-74,34f
mispairing,
I l6
nonallelic, exons in, I
l6
nontranscrjbed,
7 7 7
-7
7 8. 7 7 8[
number of
in bacteria,
77-79,78f
in
different
organisms.
TT
,
77f
in different species,
7
8,
7 8f
in eukaryotes,
79-8o,79f, 80f
genome
size and,78,
78f
in human
genome,
83-85,
84f
in mouse
genome,
81,
8Y
overlapping, 4547,
46f,47f, 5)
protein-coding,
70-7
1, 7Of, 82
related, development by
duplication,
99
<imnlcc Inrm ?R
sizes, differences irr, 4)45,
44f,4rf
structural,
j02.
See also
lac
genes
transcribed,
777
-77
8, 77 8f
types,
number of
,
8I-83, llf,
82f
Genetic
code, f89-2 I 5
anticodons
See Anticodons
breaking,
190
codons. See Codons
definition of,
30
evolution, I92
fixed starting
point
for, l0
reading
frames, l1-12
sporadic alterations,
197-199,
197f,
l98f
universality,
19l-192
Genetic
information
central dogma,
10-1 I, f l/
DNA base sequences
and, 6
expression,
as unidirectional,
I I
positional,53
Genetic
linkage, 24
Genetic linkage maps, 56
Genetic locus, 24
Genetic mapping
minisatellites for, 123-125,
124f,
l25f
RFLPS
for, 58-60, 59f
Genetic
recombination,
gene
conversion
and,
I l6
cenetics, history of, 3l
Genome
bacterial, nucleoid,
7 ) 4-7 ) 5,
7 ) 4f
contents ot,
2, 55, 57-58, 58J
definition of,
56
DNA in, I I
extrachromosomal
bacteriophages
See
Phages
plasmids
Sea
Plasmids
gene
distribution
,
85-86.
85J
genes
in,
2
human, number oI
genes
in, 83-86,84f
individual
variation in. 57-58,
58[
mapprng
by linkage,
56
by
restriction cleav
age, 56-57
by sequence,
57
minisatellite
vari abllity,
124, l24f
number
of
genes
in, 56
organelle
Sae a/so
Mitochondria,
genomes
DNAir', 67-69,
68f, 69f
potential
of,
56
sequences,
number
of
genes
and,
77, 77f
size,12,
l2f
in different
phylum,
60-61,
60f, 6If
in different
species,
7 8, 7 8f
gene
number
and,
78, 78f
genetic
complexity
and, 6l
length
of nonrepetive
DNA and,
62
number
of
gene
families
and, 81, 8l/
proportion
of
unique
genes
and, 81,
8l/
protein
binding and,
3 17
qpes,12,
I2f
viroid,
I9-20,20/
virual,
I
I
Germ
cells,
methylation,
8j2-871,
81)f
Germline
pattern,
577
Gerstmann-
Straussler
syndrome,
839
y-globulin gene,
633
GGQ
motii, 174
GlcN6P
activation
of
ribozyme
that cleaves
mRNA,
)40,34rf
regulation,
7 l4-7
15, 7 l4f
Gln/Asn
protein,
prion
formation
and, 838
Globin
gene
d
deletions
in thalassemias,
I I0-l I I,
I I I/
during
development,
I0l-102,
102,f
exons,5l,5l/
intron
length, 4l
p
cluster
formation,
102-107,
103,
1
09
deletions
in thalassemias,
I I0-l
I I, I I l/
during development,
l0l-102,
102/
exons,
)I, )rJ
of
goat,
I09
intron
length, 4l--42
pseudogenes,
I09
restriction
map,
40, 4ll
species
diflerences,
43,
4jf
clusters
evolution
of, I
I t-I l2
formation
by duplication,
l0l-104,
lo2f, l0)f
divergence,
105-106,
lo5f, l06f
evolution,
103-104,
LO)f, 106,
l06f
organization,
structural,
41,42f,
l0l, l02f
pseudogene, I08, I08/
superfamily,
51, 5ll
Globin
protein,
synthesis,
l)3-134,
lj4f
B-Globulin
gene
DNAase
I digestion,
7
88-7
89,
7
89f
LCR,789-790,
790f
p-Globulin
promoter, hlryersensitive
sites,
787
Glucocorticoid
receptors
activation,
by
ligand binding,
656,
656f
zinc
fingers, 615-656,
656f
Glucose,
CRP
activator
and',721,
j22f
Glutamate
receptors,
mRNA
editing,
721,
72lf
Glycolases,
base
flipping,
506,
5o6f
Glycosylases,
excision
repair
in mammalian
cells and,
504-50r,505f
GMP-PCP,
I68
cl
phase,387,787f
Gratuitous
inducers,
307
GRE
(glucocorticoid
response
element),
649
Index
875