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Evolution__3rd_Edition

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..<br />

parent–offspring regressional slope<br />

237–8<br />

response to artificial selection 236–40<br />

selection relationship 240<br />

stabilizing selection 246–7<br />

units of selection 306<br />

hermaphrodites 146–50<br />

heterochrony 576–7<br />

Heterodontus portusjacksoni (Port Jackson<br />

shark) 167<br />

heterogamy 396, 685<br />

heterogonic species 319–20<br />

heteromorphy 274–5<br />

heterozygosity 149, 685<br />

decrease 148<br />

European crested newt 275<br />

genetic variation 170, 171<br />

heterozygotes 33, 34, 35, 685<br />

heterozygous advantage 123–7, 275, 685<br />

Hieracium (hawkweed) 372<br />

hindlimbs, vestigial 59, 60<br />

Hirundo rustica (barn swallow) 333, 334<br />

hitch-hiking 210, 213, 214<br />

gene frequency 308–9<br />

prezygotic isolation 387, 404<br />

hits, multiple 37<br />

HIV 31, 45–6<br />

drug resistance 45–6, 75, 88<br />

HLA B27 203–4<br />

mutation rate 530<br />

phylogeny 451, 452<br />

HLA B27 203–4<br />

HLA genes 182, 203–4<br />

linkage disequilibrium 204–5<br />

hoazin 187<br />

homeobox genes 416<br />

hominids<br />

evolution 545–7<br />

fossil species 547–50<br />

lineage 547<br />

hominoids 461<br />

phylogenetic relations 442<br />

Homo 461–3<br />

Homo erectus 548–9, 550<br />

Homo habilis 548<br />

Homo sapiens 549<br />

see also humans<br />

homologous similarity 55–61<br />

biogeographic 61<br />

molecular 59, 66<br />

morphological 57<br />

homology 580–1, 685<br />

ancestral 431–3, 682<br />

phenetic classification 480–1<br />

correlation 61–3<br />

derived 431–3, 683<br />

phenetic classification 480–1<br />

distinction from homoplasies 430<br />

eyes 265<br />

genes 457–8<br />

hierarchical classification 61–3<br />

pentadactyl limb 428, 431<br />

phylogenetic inference 427–8, 437–8<br />

reproductive physiology 434<br />

wings 55, 581<br />

homoplasy 427, 428–30, 685<br />

character conflict 432–3<br />

distinction from homologies 430<br />

phenetic classification 480–1<br />

phylogenetic inference 437–8<br />

homozygosity<br />

chance of 141<br />

change through time 147<br />

drift to 143, 146<br />

equilibrium 150–1<br />

European crested newt 275<br />

genetic drift 150<br />

Hardy–Weinberg equilibrium 145<br />

increase 148<br />

neutral drift over time 145–50<br />

homozygotes 33, 34, 685<br />

frequency 148<br />

identical gene combination 148<br />

self-fertilisation 147–8, 149<br />

subdivided populations 130<br />

honeydew 614, 615<br />

Hooker, Joseph 10, 11<br />

horse evolution 591–6<br />

climate 593n<br />

grass coevolution 593n<br />

rate 598<br />

taxonomic rate of evolution 609, 610<br />

host shifts 412–13, 620, 621<br />

host switching 630<br />

hosts see parasite–host relations; parasites<br />

Hox genes 24, 558, 560, 579–80, 685<br />

expansion 582–3<br />

hoxc6 gene 584, 585–6<br />

human genome 27, 558–9<br />

transposal elements 567<br />

human immunodeficiency virus see HIV<br />

humans 49<br />

ancestors 545<br />

fossil record 547–50<br />

bipedality 546, 550<br />

birth 546<br />

birthweight 76–7, 78, 80<br />

brain size 546, 550<br />

chromosomes 33<br />

cloning 315, 316<br />

Index 741<br />

common ancestor 483<br />

deleterious mutations 123<br />

disease 451<br />

virulence and vaccines 629<br />

DNA 578<br />

evolution 545–50<br />

multiregional hypothesis 549<br />

out of Africa hypothesis 549–50<br />

gene flow 132<br />

genome reduction in pathogens 562<br />

gestation 546<br />

immune system 631<br />

language 547<br />

mitochondrial DNA studies 454–5<br />

mutation rate 32<br />

phylogenetic relations 454–5<br />

molecular versus paleontological evidence<br />

460–3<br />

with other hominoids 442<br />

races 364, 365<br />

regulatory gene changes 578–9<br />

shared characters with chimpanzees 446<br />

stereoscopic vision 545<br />

variation 364, 365<br />

hunting<br />

adaptations 293–4<br />

skills 307<br />

success 309–10<br />

Huntington’s disease 142<br />

Huxley, Julian 15, 16, 17<br />

Huxley, Thomas Henry 10, 11<br />

hybrid(s)<br />

natural selection 408<br />

postzygotic isolation 400<br />

recombination 393<br />

sterility evolution 397<br />

hybrid breakdown 393<br />

hybrid fitness, reduced 373–4<br />

hybrid speciation 406–8, Plate 9<br />

hybrid zones 409–10, 411<br />

hedgehog 499<br />

hybridization 52, 53–4, 405–8, 676n, Plate 9<br />

Galápagos finches 373–4<br />

plant species 405–8, Plate 9<br />

hydrothermal systems 531<br />

Hyla versicolor (gray tree frog) 335<br />

Hylonomus (fossil reptile) 542<br />

Hyracotherium (horse ancestor) 591, 592<br />

ice ages 497, 498–9<br />

Ichthyostega 541<br />

idealism 485–6, 685<br />

igneous rock 528<br />

immigration 497<br />

Great American Interchange 515–17

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