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GO_term: GO:0019953   

GO:0019953 Definition The regular alternation, in the life cycle of haplontic, diplontic and diplohaplontic organisms, of meiosis and fertilization which provides for the production of offspring. In diplontic organisms there is a life cycle in which the products of meiosis behave directly as gametes, fusing to form a zygote from which the diploid, or sexually reproductive polyploid, adult organism will develop. In diplohaplontic organisms a haploid phase (gametophyte) exists in the life cycle between meiosis and fertilization (e. g. higher plants, many algae and fungi); the products of meiosis are spores that develop as haploid individuals from which haploid gametes develop to form a diploid zygote; diplohaplontic organisms show an alternation of haploid and diploid generations. In haplontic organisms meiosis occurs in the zygote, giving rise to four haploid cells (e. g. many algae and protozoa), only the zygote is diploid and this may form a resistant spore, tiding organisms over hard times.
The regular alternation, in the life cycle of haplontic, diplontic and diplohaplontic organisms, of meiosis and fertilization which provides for the production offspring. In diplontic organisms there is a life cycle in which the products of meiosis behave directly as gametes, fusing to form a zygote from which the diploid, or sexually reproductive polyploid, adult organism will develop. In diplohaplontic organisms a haploid phase (gametophyte) exists in the life cycle between meiosis and fertilization (e.g. higher plants, many algae and fungi); the products of meiosis are spores that develop as haploid individuals from which haploid gametes develop to form a diploid zygote; diplohaplontic organisms show an alternation of haploid and diploid generations. In haplontic organisms meiosis occurs in the zygote, giving rise to four haploid cells (e.g. many algae and protozoa), only the zygote is diploid and this may form a resistant spore, tiding organisms over hard times.
Termsexual reproduction
TypeBiological_process
Child Instance (11)
ParentInstance_ofGO:0000003
Attributes_of Motif INTERPRO:IPR005795
INTERPRO:IPR008836
INTERPRO:IPR006742
INTERPRO:IPR007689
Index Ancestor (26)
Descendent GO:0000218
GO:0000321
GO:0000742
GO:0000743
GO:0000744
GO:0000745
GO:0000747
GO:0000748
GO:0000749
GO:0000750
GO:0000751
GO:0000752
GO:0000753
GO:0000754
GO:0000755
GO:0000756
GO:0000757
GO:0000758
GO:0000759
GO:0000760
GO:0000761
GO:0000909
GO:0001542
GO:0001543
GO:0001545
GO:0001546
GO:0001548
GO:0001549
GO:0001550
GO:0001555
GO:0001556
GO:0001675
GO:0006946
GO:0007276
GO:0007277
GO:0007278
GO:0007279
GO:0007280
GO:0007281
GO:0007282
GO:0007283
GO:0007284
GO:0007285
GO:0007286
GO:0007287
GO:0007288
GO:0007289
GO:0007290
GO:0007291
GO:0007292
GO:0007293
GO:0007294
GO:0007295
GO:0007296
GO:0007297
GO:0007298
GO:0007299
GO:0007300
GO:0007301
GO:0007302
GO:0007303
GO:0007304
GO:0007305
GO:0007306
GO:0007307
GO:0007308
GO:0007309
GO:0007310
GO:0007311
GO:0007312
GO:0007313
GO:0007314
GO:0007315
GO:0007316
GO:0007317
GO:0007318
GO:0007319
GO:0007322
GO:0007328
GO:0007330
GO:0007331
GO:0007332
GO:0007333
GO:0007334
GO:0007338
GO:0007339
GO:0007340
GO:0007341
GO:0007342
GO:0007343
GO:0007344
GO:0008069
GO:0008070
GO:0008071
GO:0008072
GO:0008102
GO:0008103
GO:0008302
GO:0008314
GO:0008335
GO:0008354
GO:0008359
GO:0009552
GO:0009553
GO:0009554
GO:0009555
GO:0009556
GO:0009557
GO:0009558
GO:0009559
GO:0009560
GO:0009561
GO:0009562
GO:0009563
GO:0009564
GO:0009566
GO:0009567
GO:0009677
GO:0009835
GO:0009993
GO:0009994
GO:0010152
GO:0010197
GO:0010198
GO:0010208
GO:0016032
GO:0016325
GO:0016350
GO:0018985
GO:0019094
GO:0019095
GO:0019096
GO:0019097
GO:0019749
GO:0030454
GO:0045476
GO:0045477
GO:0045849
GO:0045850
GO:0030706
GO:0048240
GO:0045700
GO:0045701
GO:0045702
GO:0045592
GO:0045593
GO:0045594
GO:0030715
GO:0048130
GO:0048129
GO:0030723
GO:0030724
GO:0030719
GO:0048114
GO:0030717
GO:0030722
GO:0042070
GO:0048127
GO:0048128
GO:0048126
GO:0030726
GO:0030571
GO:0048142
GO:0048131
GO:0048132
GO:0048141
GO:0048133
GO:0048236
GO:0030462
GO:0030714
GO:0048139
GO:0030708
GO:0048138
GO:0048140
GO:0045450
GO:0045853
GO:0045854
GO:0048112
GO:0048113
GO:0048115
GO:0048116
GO:0048117
GO:0048118
GO:0048119
GO:0048120
GO:0048121
GO:0048122
GO:0046011
GO:0046012
GO:0046595
GO:0046594
GO:0045451
GO:0045855
GO:0045856
GO:0048124
GO:0048125
GO:0048123
GO:0048111
GO:0030381
GO:0030461
GO:0030477
GO:0030453
GO:0030434
GO:0019953
GO:0045729
GO:0030703
GO:0046843
GO:0046844
GO:0030704
GO:0048233
GO:0045694
GO:0045695
GO:0045696
GO:0048135
GO:0030727
GO:0048110
GO:0030720
GO:0030707
GO:0030709
GO:0030710
GO:0030712
GO:0030711
GO:0030713
GO:0048157
GO:0048164
GO:0048161
GO:0048165
GO:0048166
GO:0048162
GO:0048158
GO:0048160
GO:0048159
GO:0048163
GO:0030728
GO:0048230
GO:0045688
GO:0045689
GO:0045690
GO:0045691
GO:0045692
GO:0045693
GO:0045697
GO:0045698
GO:0045699
GO:0048234
GO:0048235
GO:0048231
GO:0048134
GO:0048136
GO:0048137
GO:0048232
GO:0048229
GO:0035046
GO:0035047
GO:0035038
GO:0035092
GO:0035093
GO:0035044
GO:0035045
GO:0035043
GO:0035041
GO:0035042
GO:0042078
GO:0043012
GO:0043013
GO:0043046
GO:0031137
GO:0031138
GO:0031139
GO:0031140
GO:0031141
GO:0031142
GO:0031382
GO:0031383
GO:0031384
GO:0031385
GO:0035039
GO:0035040
GO:0035037
GO:0035036
GO:0048477
GO:0048599
GO:0051662
GO:0051663
GO:0048601
GO:0048600
GO:0035232
GO:0035234
GO:0035233
GO:0048515