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Autosome

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196: 279:— are still miscarried over 23% of the time. Possessing a single copy of an autosome (known as a monosomy) is nearly always incompatible with life, though very rarely some monosomies can survive past birth. Having three copies of an autosome (known as a trisomy) is far more compatible with life, however. A common example is 205: 258:
to manifest the disease. Autosomal recessive diseases, however, require two copies of the deleterious allele for the disease to manifest. Because it is possible to possess one copy of a deleterious allele without presenting a disease phenotype, two phenotypically normal parents can have a child with
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during meiosis. Deletions of part of a chromosome cause partial monosomies, while duplications can cause partial trisomies. If the duplication or deletion is large enough, it can be discovered by analyzing a karyogram of the individual. Autosomal translocations can be responsible for a number of
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or recessive fashion. These disorders manifest in and are passed on by either sex with equal frequency. Autosomal dominant disorders are often present in both parent and child, as the child needs to inherit only one copy of the deleterious
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Foster JW, Dominguez-Steglich MA, Guioli S, Kwok C, Weller PA, Stevanović M, Weissenbach J, Mansour S, Young ID, Goodfellow PN (December 1994). "Complicate dysplasia and autosomal sex reversal caused by mutations in an SRY-related gene".
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pair (46 chromosomes total). The autosome pairs are labeled with numbers (1–22 in humans) roughly in order of their sizes in base pairs, while allosomes are labelled with their letters. By contrast, the allosome pair consists of two
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can also result in disease conditions. Aneuploidy of autosomes is not well tolerated and usually results in miscarriage of the developing fetus. Fetuses with aneuploidy of gene-rich chromosomes—such as
234: 172:. Karyograms and staining techniques can only detect large-scale disruptions to chromosomes—chromosomal aberrations smaller than a few million base pairs generally cannot be seen on a karyogram. 1388: 160:
for easy comparison. Clinical geneticists can compare the karyogram of an individual to a reference karyogram to discover the cytogenetic basis of certain
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Savva, George M.; Morris, Joan K.; Mutton, David E.; Alberman, Eva (June 2006). "Maternal age-specific fetal loss rates in Down syndrome pregnancies".
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of deleterious alleles from parents. Autosomal genetic disorders which exhibit Mendelian inheritance can be inherited either in an
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are different: There are two copies of the X-chromosome in females, but males have a single X-chromosome and a Y-chromosome.
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Wang, Jin-Chen C. (2005-01-01). "Autosomal Aneuploidy". In Gersen, Steven L.; MEd, Martha B. Keagle (eds.).
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All human autosomes have been identified and mapped by extracting the chromosomes from a cell arrested in
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This article is about a type of chromosome. For the ancestral discovery method using autosomal DNA, see
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An illustration of the inheritance pattern and phenotypic effects of an autosomal recessive gene.
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Autosomal genetic disorders can arise due to a number of causes, some of the most common being
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and is vital for male sex determination during development. TDF functions by activating the
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Strefford, Jonathan C.; An, Qian; Harrison, Christine J. (31 October 2014).
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gene can cause humans with an ordinary Y chromosome to develop as females.
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Nussbaum RL, McInnes RR, Willard HF, Hamosh A, Thompson MW (2007).
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even though they are not sex chromosomes. For example, the
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and then staining them with a type of dye (most commonly,
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gene on the Y chromosome encodes the transcription factor
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the disease if both parents are carriers (also known as
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International System for Human Cytogenetic Nomenclature
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that usually contains 22 pairs of autosomes and one
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Genealogical DNA test § Geographic origin tests
731: 218:(chromosomes 1–22) in both females and males. The 54:) pairs, which may have different structures. The 507:"Chromosome mapping Facts, information, pictures" 290:Partial aneuploidy can also occur as a result of 1647: 283:, which is caused by possessing three copies of 228: 1415: 897: 883: 168:would show that they possess three copies of 164:. For example, the karyogram of someone with 156:). These chromosomes are typically viewed as 117:Autosomes still contain sexual determination 824:"Dosage Compensation of the Sex Chromosomes" 815: 766: 725: 653: 540:Thompson & Thompson Genetics in Medicine 822:Disteche, Christine M. (15 December 2012). 1422: 1408: 890: 876: 447: 16:Any chromosome other than a sex chromosome 847: 798: 749: 366: 821: 232: 629:The Principles of Clinical Cytogenetics 38:. The members of an autosome pair in a 1648: 58:in autosomes is collectively known as 1403: 1379:List of organisms by chromosome count 871: 600: 517:from the original on 10 December 2015 772: 626: 622: 620: 567: 565: 840:10.1146/annurev-genet-110711-155454 405:from the original on 21 August 2017 370:An Introduction to genetic analysis 13: 631:. Humana Press. pp. 133–164. 307:, not nonfunctional gene product. 203: 194: 14: 1672: 617: 562: 367:Griffiths, Anthony J. F. (1999). 1429: 704:"Translocation - Glossary Entry" 319:(abnormal number of chromosomes) 1000:Macrochromosome/Microchromosome 714:from the original on 2015-12-09 696: 583:from the original on 2015-10-13 90:in males. Unusual combinations 594: 529: 499: 417: 387: 360: 1: 353: 214:There are two copies of each 395:"Autosomal DNA - ISOGG Wiki" 188: 185: 86:in females or one X and one 7: 791:10.1093/genetics/160.4.1745 343:XY sex-determination system 310: 229:Autosomal genetic disorders 10: 1677: 1040:Dinoflagellate chromosomes 373:. New York: W.H. Freeman. 287:instead of the usual two. 245:in parental germ cells or 18: 1610: 1596: 1569: 1446: 1437: 1384:List of sequenced genomes 1359: 1262: 1224: 1194: 1152:Chromosomal translocation 1122: 1025:A chromosome/B chromosome 1016:(or accessory chromosome) 978: 909: 828:Annual Review of Genetics 637:10.1385/1-59259-833-1:133 292:unbalanced translocations 213: 177: 1206:Telomere-binding protein 1020:Supernumerary chromosome 425:"Autosome Definition(s)" 1604:Human mitochondrial DNA 773:Klar, Amar J S (2002). 708:Genetics Home Reference 577:Encyclopædia Britannica 573:"human genetic disease" 429:Genetics Home Reference 295:diseases, ranging from 1142:Structural alterations 338:Pseudoautosomal region 238: 208: 199: 137:, so mutations of the 1159:Numerical alterations 1147:Chromosomal inversion 1045:Homologous chromosome 601:Chial, Heidi (2008). 333:Homologous chromosome 263:) for the condition. 247:Mendelian inheritance 236: 207: 198: 181:of human chromosomes 1623:Human Genome Project 1598:Mitochondrial genome 1367:Extrachromosomal DNA 1055:Satellite chromosome 1030:Lampbrush chromosome 970:Nuclear organization 751:10.4161/cc.8.14.9103 1630:List of human genes 1060:Centromere position 1035:Polytene chromosome 1005:Circular chromosome 469:1994Natur.372..525F 328:Autosomal recessive 42:cell have the same 662:Prenatal Diagnosis 323:Autosomal dominant 251:autosomal dominant 239: 209: 200: 46:, unlike those in 1643: 1642: 1635:Human archaeology 1592: 1591: 1397: 1396: 1355: 1354: 1092:Centromere number 1009:Linear chromosome 744:(14): 2175–2184. 646:978-1-58829-300-8 435:on 2 January 2016 380:978-0-7167-3771-1 226: 225: 1668: 1444: 1443: 1424: 1417: 1410: 1401: 1400: 1222: 1221: 1186:Polyploidization 1014:Extra chromosome 929:Genetic material 892: 885: 878: 869: 868: 862: 861: 851: 819: 813: 812: 802: 785:(4): 1745–1747. 770: 764: 763: 753: 729: 723: 722: 720: 719: 700: 694: 693: 657: 651: 650: 624: 615: 614: 607:Nature Education 598: 592: 591: 589: 588: 569: 560: 559: 543: 533: 527: 526: 524: 522: 511:encyclopedia.com 503: 497: 496: 477:10.1038/372525a0 463:(6506): 525–30. 451: 445: 444: 442: 440: 431:. Archived from 421: 415: 414: 412: 410: 391: 385: 384: 364: 348:Genetic disorder 175: 174: 75:a diploid genome 1676: 1675: 1671: 1670: 1669: 1667: 1666: 1665: 1646: 1645: 1644: 1639: 1606: 1588: 1565: 1433: 1428: 1398: 1393: 1351: 1258: 1220: 1190: 1179:Paleopolyploidy 1124: 1118: 974: 948:Heterochromatin 911: 905: 896: 866: 865: 820: 816: 771: 767: 730: 726: 717: 715: 702: 701: 697: 674:10.1002/pd.1443 658: 654: 647: 625: 618: 599: 595: 586: 584: 571: 570: 563: 556: 534: 530: 520: 518: 505: 504: 500: 452: 448: 438: 436: 423: 422: 418: 408: 406: 393: 392: 388: 381: 365: 361: 356: 313: 231: 220:sex chromosomes 24: 17: 12: 11: 5: 1674: 1664: 1663: 1658: 1641: 1640: 1638: 1637: 1632: 1627: 1626: 1625: 1614: 1612: 1611:Related topics 1608: 1607: 1602: 1600: 1594: 1593: 1590: 1589: 1587: 1586: 1581: 1575: 1573: 1571:Sex chromosome 1567: 1566: 1564: 1563: 1558: 1553: 1548: 1543: 1538: 1533: 1528: 1523: 1518: 1513: 1508: 1503: 1498: 1493: 1488: 1483: 1478: 1473: 1468: 1463: 1458: 1452: 1450: 1441: 1439:Nuclear genome 1435: 1434: 1427: 1426: 1419: 1412: 1404: 1395: 1394: 1392: 1391: 1386: 1381: 1376: 1375: 1374: 1363: 1361: 1357: 1356: 1353: 1352: 1350: 1349: 1344: 1339: 1334: 1329: 1324: 1319: 1314: 1309: 1304: 1299: 1294: 1289: 1284: 1279: 1274: 1268: 1266: 1260: 1259: 1257: 1256: 1251: 1246: 1241: 1236: 1230: 1228: 1219: 1218: 1213: 1198: 1196: 1192: 1191: 1189: 1188: 1183: 1182: 1181: 1176: 1171: 1166: 1156: 1155: 1154: 1149: 1139: 1134: 1128: 1126: 1120: 1119: 1117: 1116: 1115: 1114: 1109: 1104: 1099: 1089: 1088: 1087: 1082: 1077: 1072: 1070:Submetacentric 1067: 1057: 1052: 1047: 1042: 1037: 1032: 1027: 1022: 1017: 1011: 1002: 997: 996:or heterosome) 990:Sex chromosome 982: 980: 976: 975: 973: 972: 967: 962: 957: 952: 951: 950: 945: 935: 926: 921: 915: 913: 907: 906: 895: 894: 887: 880: 872: 864: 863: 834:(1): 537–560. 814: 765: 724: 710:. 2015-11-02. 695: 668:(6): 499–504. 652: 645: 616: 593: 561: 554: 528: 498: 446: 416: 386: 379: 358: 357: 355: 352: 351: 350: 345: 340: 335: 330: 325: 320: 312: 309: 243:nondisjunction 230: 227: 224: 223: 211: 210: 201: 191: 190: 187: 183: 182: 166:Patau Syndrome 52:sex chromosome 36:sex chromosome 34:that is not a 15: 9: 6: 4: 3: 2: 1673: 1662: 1659: 1657: 1654: 1653: 1651: 1636: 1633: 1631: 1628: 1624: 1621: 1620: 1619: 1616: 1615: 1613: 1609: 1605: 1601: 1599: 1595: 1585: 1582: 1580: 1577: 1576: 1574: 1572: 1568: 1562: 1559: 1557: 1554: 1552: 1549: 1547: 1544: 1542: 1539: 1537: 1534: 1532: 1529: 1527: 1524: 1522: 1519: 1517: 1514: 1512: 1509: 1507: 1504: 1502: 1499: 1497: 1494: 1492: 1489: 1487: 1484: 1482: 1479: 1477: 1474: 1472: 1469: 1467: 1464: 1462: 1459: 1457: 1454: 1453: 1451: 1449: 1445: 1442: 1440: 1436: 1432: 1425: 1420: 1418: 1413: 1411: 1406: 1405: 1402: 1390: 1387: 1385: 1382: 1380: 1377: 1373: 1370: 1369: 1368: 1365: 1364: 1362: 1358: 1348: 1345: 1343: 1340: 1338: 1335: 1333: 1330: 1328: 1325: 1323: 1320: 1318: 1315: 1313: 1310: 1308: 1305: 1303: 1300: 1298: 1295: 1293: 1290: 1288: 1285: 1283: 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Retrieved 398: 389: 369: 362: 289: 273:chromosome 1 265: 240: 219: 215: 186:Female (XX) 150:prometaphase 143: 116: 88:Y chromosome 68: 63: 59: 27: 25: 1656:Chromosomes 1112:Polycentric 1102:Monocentric 1085:Holocentric 1080:Acrocentric 1075:Telocentric 1065:Metacentric 943:Euchromatin 903:chromosomes 305:gene dosage 1650:Categories 1264:Centromere 1195:Structures 1174:Polyploidy 1164:Aneuploidy 965:Nucleosome 955:Chromosome 738:Cell Cycle 718:2015-11-08 587:2015-10-16 521:4 December 354:References 317:Aneuploidy 268:aneuploidy 266:Autosomal 189:Male (XY) 162:phenotypes 158:karyograms 44:morphology 32:chromosome 1216:Protamine 1123:Processes 1107:Dicentric 960:Chromatid 938:Chromatin 919:Karyotype 179:Karyotype 146:metaphase 48:allosomal 1448:Autosome 1360:See also 1202:Telomere 1169:Euploidy 1097:Acentric 994:allosome 986:Autosome 912:concepts 858:22974302 809:11973326 779:Genetics 760:19556891 712:Archived 690:34154717 682:16634111 613:(1): 63. 581:Archived 515:Archived 439:28 April 409:28 April 403:Archived 311:See also 216:autosome 133:gene on 79:allosome 28:autosome 1372:Plasmid 1226:Histone 1137:Meiosis 1132:Mitosis 849:3767307 800:1462039 493:1472426 485:7990924 465:Bibcode 40:diploid 30:is any 933:Genome 924:Ploidy 856:  846:  807:  797:  758:  688:  680:  643:  552:  491:  483:  457:Nature 377:  297:cancer 256:allele 154:Giemsa 71:humans 1210:TINF2 979:Types 910:Basic 686:S2CID 489:S2CID 119:genes 108:XXXXX 73:have 64:auDNA 60:atDNA 992:(or 854:PMID 805:PMID 756:PMID 678:PMID 641:ISBN 550:ISBN 523:2015 481:PMID 441:2018 411:2018 375:ISBN 139:SOX9 131:SOX9 112:XXYY 104:XXXX 1244:H2B 1239:H2A 844:PMC 836:doi 795:PMC 787:doi 783:160 746:doi 670:doi 633:doi 473:doi 461:372 299:to 148:or 127:TDF 123:SRY 110:or 100:XXX 96:XXY 92:XYY 62:or 56:DNA 26:An 1652:: 1561:22 1556:21 1551:20 1546:19 1541:18 1536:17 1531:16 1526:15 1521:14 1516:13 1511:12 1506:11 1501:10 1287:C2 1282:C1 1254:H4 1249:H3 1234:H1 1204:: 901:: 852:. 842:. 832:46 830:. 826:. 803:. 793:. 781:. 777:. 754:. 740:. 736:. 706:. 684:. 676:. 666:26 664:. 639:. 619:^ 609:. 605:. 579:. 575:. 564:^ 548:. 546:69 509:. 487:. 479:. 471:. 459:. 427:. 401:. 397:. 106:, 102:, 98:, 94:, 66:. 1584:Y 1579:X 1496:9 1491:8 1486:7 1481:6 1476:5 1471:4 1466:3 1461:2 1456:1 1423:e 1416:t 1409:v 1347:T 1342:Q 1337:P 1332:O 1327:N 1322:M 1317:K 1312:J 1307:I 1302:H 1297:F 1292:E 1277:B 1272:A 1212:) 1208:( 1007:/ 988:/ 931:/ 891:e 884:t 877:v 860:. 838:: 811:. 789:: 762:. 748:: 742:8 721:. 692:. 672:: 649:. 635:: 611:1 590:. 558:. 525:. 495:. 475:: 467:: 443:. 413:. 383:. 50:( 23:.

Index

Genealogical DNA test § Geographic origin tests
chromosome
sex chromosome
diploid
morphology
allosomal
sex chromosome
DNA
humans
a diploid genome
allosome
X chromosomes
Y chromosome
XYY
XXY
XXX
XXXX
XXXXX
XXYY
genes
SRY
TDF
SOX9
chromosome 17
SOX9
metaphase
prometaphase
Giemsa
karyograms
phenotypes

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