Related by context. Frequent words. (Click for all words.) 59 triplets 51 twins 48 quadruplets 47 twin 46 identical twins 45 sibling 45 fraternal twins 45 chromosome 44 siblings 43 quintuplets 42 chromosomes 42 X chromosome 41 newborn 41 offspring 41 firstborn 40 NICU 39 preemie 39 Identical twins 38 mtDNA 38 utero 38 blastocyst 38 trios 38 genetic defect 38 chromosomal 38 identical twin 38 baby 37 twin daughters 37 conjoined twin 37 grandchild 37 neonatal intensive care 37 Jayden 37 sextuplets 36 tyke 36 parented 36 Kaiden 36 mutated gene 36 alleles 36 quads 36 twin sister 36 mouse embryos 36 X chromosomes 35 #/#-year-old [002] 35 newborns 35 conjoined 35 gene mutation 35 oocyte 35 dilated cardiomyopathy 35 postnatal 35 genetically 35 Cayden 35 progenitors 34 Sibling 34 Maliyah 34 born prematurely 34 neonatal 34 brood 34 conjoined twins 34 Neonatal Intensive Care 34 babies 34 sisters 34 surrogate mother 34 3T 34 Jaxson 34 progeny 34 Caesarian section 34 nestlings 34 cesarean section 34 birth 33 eldest 33 post natal 33 Camryn 33 Siamese twins 33 fathers 33 malformation 33 genetic abnormalities 33 genetically identical 33 cousins 33 Y chromosome 33 Caesarean section 33 genetic disorder 33 playmates 33 daughters 32 defective gene 32 spina bifida 32 mothering 32 Neonatal 32 Down syndrome 32 ovulate 32 preschooler 32 runt 32 CNVs 32 twin sisters 32 mother 32 duos 32 inbreeding 31 placenta 31 genetic 31 artificially inseminated 31 homozygous 31 Y chromosomes 31 toddling