- abnormality –ies (See chromosomal abnormality)
- abortion
- adenine
- allele frequencies in populations
- allele frequency
- amino acid
- amniocentesis
- anaphase
- aneuploidy
- anticipation
- artificial selection
- autosomal abnormality(ies)
- autosomal dominant inheritance
- autosomal recessive inheritance
- autosome
- Barr body (X-chromatin body)
- Bayes’theorem
- carrier
- CAT box
- cell cycle
- centiMorgan
- centromere
- chimaera
- chromatid
- chromosome
- chromosome abnormality
- chromosome instability
- chromosome mapping
- clone
- codominance
- codon
- consanguineous marriage
- consanguinity
- contig
- cosmid
- deletion
- Deoxyribonucleic acid (DNA)
- diploid (cell)
- disomy
- DNA fingerprint/fingerprinting
- DNA ligase
- DNA polymerase
- DNA replication
- dominant
- electrophoresis
- endoplasmic reticulum
- eugenics
- evolution
- exons
- expressivity
- fertilisation
- fetoscopy
- gamete
- gene
- gene repression
- gene therapy
- genetic code
- genetic counselling
- genetic linkage
- genome
- genomic imprinting
- genotype
- guanine
- haploid cell(s)
- haplotype
- Hardy-Weinberg principle
- heterochromatin
- heterozygosity
- heterozygote
- histones
- holandric inheritance
- homoeotic gene
- hybridisation
- inbreeding
- incest
- insertion mutation
- interphase
- intersex
- intron
- inversion
- isochromosome
- isozymes
- karyotype
- linkage disequilibrium
- LOD score (Z score)
- lyonisation
- meiosis
- meiotic studies
- mendelism
- messenger-RNA
- metaphase
- minisatellites
- mitochondria
- mitochondrial DNA
- mitocondrial gen(es)
- mitosis
- monosomy
- mosaicism
- multifactorial inheritance
- mutation
- mutation rate
- natural selection
- neutral gene
- non disjunction
- non-penetrant gene
- nucleic acid
- nucleosome
- nucleotide
- nucleus
- numerical abnormality(ies)
- oligonucleotide
- operator gene(s)
- operon
- panmixis
- paracentric inversion
- parthenogenesis
- penetrance
- pericentric inversion
- pharmacogenetics
- phenocopies
- phenotype
- phenylalanine
- pleiotropic gene
- polymorphism
- populations genetics
- pregnancy
- preimplantation diagnosis
- prenatal diagnosis
- prophase
- proto-oncogene(s)
- pseudogenes
- pulsed field gel electrophoresis
- recombinant DNA technology
- recombination fraction
- regression coefficient
- restriction enzymes
- restriction fragment length polymorphisms
- ribonucleic acid (RNA)
- ribosome
- ring chromosome
- Robertsonian translocations
- segregation
- sex chromatin
- sex chromosome(s)
- sex limitation
- sex linked inheritance
- sex-determining region of the Y
- sickle-cell anaemia
- single-gene desorder(s)
- southern blot technique
- splicing
- structural gene
- tandem repeat(s)
- TATA box (Goldberg-Hogness box)
- telomere
- telophase
- template-RNA
- teratogen
- transcription
- translation
- translocation(s)
- triploidy
- trisomy
- tyrosine
- uracil
- vector
- X chromosome
- X-chromatin body (Barr body)
- X-linked inheritance
- Y chromosome
- Y-linked inheritance (holandric inheritance)