Geneticist can observe maximally only 4 generations
- 4 generations
- 3 generations
- 2 generations
Genealogic method or
- research into family trees
- research into twins
- methods of population genetics
Gemellological method or
- research into twins
- research into family trees
- research into karyotypes
Twins originated from only one egg fertilized by one sperm
- monozygotic twins MZ
- dizygotic twins DZ
Twins originated from only two eggs fertilized by two sperms
- dizygotic twins MZ
- monozygotic twins MZ
Monozygotic twins MZ have...
- 100 % accordance of genome
- 50 % accordance of genome
- 30 % accordance of genome
Hereditary disease, which can be predicted
- disease with a high heritability
- disease with a low heritability
- better curable
Cytogenetic research of chromosomes is matter of
- research into karyotypes
- research into family trees
- research into twins
Biochemical and molecular-genetic methods are used mainly
- observation of diseases caused by mutations
- observation of karyotype
- observation of twins
Mapping of human genom started in the year...
- 1990
- 1999
- 2009