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Intensity of a pigments of a human skin is controlled with some dominant genes. It is known, that at augmentation of amount of these genes the pigmentation becomems more intensively. What kind of a gene interaction is observed thus?
d) Codominans e) Complementarity In maize there are 10 pairs of homologous chromosomes. How many linkage groups does maize have? a) 20 b) 10 c) 5 d) 2 In medicogenetic consultation has addressed the man concerning bairnenness. In nucleus of the majority of cells of the epithelium of a mucosa of an oral cavity was revealed Barr's body. The cause ol such state may be:
In healthy parents a son sick in phenylketonuria was born. But due to an express diet he has developed normally. What are forms of variability determine his illness and convalescence?
d) illness with phenocopy, convalescence with modification variability e) illness with combinative variability convalescence with a phenocopy. What are the phenotypic effects of trisomy 21?
Mature gamete contains such set of chromosomes:
Intensity of a pigmentation of a human skin is controlled with some dominant genes. It is known, that at augmentation of amount of these genes the pigmentation becomes more intensively. What kind of a gene interaction is observed thus?
Treesomic, tesselated and translocated terms of the Down's syndrome are known. What, u method will enable to differentiate these forms of a set of symptoms?
What from the listed diseases of the man arc examples of the modification variability: a) scurvy b) albinism c) quinsy d) influenza e) color blindness Which method of human genetics is used to distinguish hereditary and environmental characters:
Mother and father are healthy. Karyotype of a fetus: 47, XX, +21 was determined by the amniocentesis. Determine the diagnosis:
c) Klinefelter's Syndrom Trsesomic, tesselated and translocated forms of the Down's syndrome arc known. What a method will enable to differentiate these forms of a set of symptoms?
In healthy parents a son sick in phenylketonuria was born But due to an express diet he has developed normally. What are forms of variability determine his illness and convalescence?
When the despiralization of chromosomes is carried out?
The result of meiosis is:
In medicogenetic consultation tie woman with the burdened heredity for prenatal diagnostics of a fetus has addressed. Analysis of amnion's fluid cells on a sex chromatin has shown that cells of a fetus contain 2 bodies of a sex chromatin (Barrs bodies) What disease is diagnosed for a fetus of the pregnant woman?
d) Edward's Syndrome The woman who during pregnancy had measles rubella has dummy child with unadnation of an upper lip and a firm palate. A genotype of the child is normal. How such infringement of development refers to as? a) Pathay's Syndrome » b) Genocopy
In medicogenetic consultation has addressed the ill girl with the initial diagnosis Turner's syndrome. What method should be used for determination of the final diagnosis?
The recessive lethal gen; bonded to X-chromosome (X1) produces a resolution of a blastemal in the person at early stages of embrvonic development. What is a probable zygote that is not capable to development? 'a) XL Xl b) XL Y C) X1 Y d)XLXL e) Any During inspection of the patient in his urine and blood have determined presence of pyruvic acid. As a result of it the diagnosis was put: phenylketonuria. What method of genetics use for this purpose? a) Genealogycal b) Biochemical
Inhabitants Zakarpafja frequently are sick of an endemical struma owing to deficiency of iodum in foodstuffs. Name the form of variability that causes this phenomenon: ,
What will be the phenotypic ration in the first filial generation during test cross, if an analyzing person is heterozygous by one pair of genes ■
e) segregation is absent Which kind of sex is heterogametic in human being'.'
In human genes A and B located in the same autosome. What types of spermatozoons does a man with genotype AB/ab produce in the case of complete linkage?
How many and which types of gametes are psesence in the person with such genotype: AaBBCcl a) one: ABC b) two: ABC, A Bc
What type of mutations has the greatest probability to be expressed in the next generation:
What is the karyotype formula for normal females?
d) 46, XX Excessive haidness of auricles (hypertrichosis) is determined by the gene that is located in the Y-chromosome. What probability of birth of the boys with this anomaly if father has this attribute? a•) 0 %
Which methods of human genetics are used to diagnose Down syndrome:
The result of final development of spermatogonium is:
Mature gamete contains such set ol el i imosomcs
e) Triploide
During inspection of the 8 years girl was determined: an underdevelopmcnt of ovaries, wide shoulders, a fine bored basin, contraction of the inferiorextremites, "neck ol a sphinx". Mcntal development is not broken. The diagnosis Turner's syndrome is determined. What amount's infringement of chromosomes is in the patient? e) Trisomy X h)Trisomy 13
What is the genotype of man with the rhesus-negative IV group of blood'.' a) IAIA RhRh b) IAI0 Rhrh c) IBI0 rhrh d) IAIB Rhrh e) IAIB rhrh Owing to influence of a gamma radiation the part of a chromosome is lost. What kind of chromosome mutation is observed?
When the divergence of chromosomes is carried out?
e) Metaphase d) Anaphase e) Telophase How many types of gametes are presence in the person with such genotype: AaBbCC?
Allelic genes:
d) Have the same loci in the homologous chromosomes Which holandric traits do you know?'
The dominance relationships of the alleles arc follows: A- brown eyes; a- blue eyes. The genes assort independent!) and prescnt in autosomes Write, please, genotype of brown-eyed woman. a)Aa b)AA c)aa d)XAXA e)XAXa What syndromes involving sex chromosome aneuploidv do you know?
Which method of human genetics is used to distinguish hereditary and environmental characters:
How many alleles that control blood group has every man has?
Which type of the human ABO blood group is example of codominance:
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