WorksheetsBasic methods for studying human heredity
Total questions: 13
Worksheet time: 7mins
What method of studying heredity used in the diagnosis of chromosomal diseases?
genealogical
population-statistics
biochemical
cytological
Why twin methods is used for studying human heredity?
to establish the hereditary nature of the trait
to determine the type and variant of inheritance
for the diagnosis of chromosomal abnormalities
to assess the relative role of heredity and environment in the development of the trait
What is function of cytogenetic method?
study of gene mutations and diagnosis of gene diseases
study genome and chromosome mutations and diagnosis of chromosomal diseases
to assess the correlative role of heredity and environment in the development of the trait
establishing the hereditary nature of the trait
What method is used in the diagnosis of hereditary metabolic defects?
cytogenetic
twins
biochemical
population-statistics
What is the essence of biochemical method?
the study of genetic patterns in both mono- and dizygotic twins
the use of qualitative and quantitative tests system, which allows to catch the impaired content of metabolic products
cultivation of human somatic cells on nutrient media
modeling on animal the hereditary pathological signs of human
What is the essence of cytogenetic method?
to study the chromosome of a cell under a microscope
to study cell organelles under the microscope
to study molecular structure of cells
to study the mechanism of cell division
What is the population-statistic method?
it is the study about features of the demographic indicator of the population in certain regions
it is the study about a general statistics of the population
it is the studying about features of distribution among the population on somatic and infectious diseases
it is the study about features of the distribution hereditary traits and genes controlling them in different groups of people
Cytogenetic and genetic studies showed that each chromosome is differentiated into two types of different in color plots. Areas that weakly stained by nuclear dyes were identified:
Euchromatin
Heterochromatin
Kinetochore
Centromere
If a trait is determined mostly by genetic factors, the percentage of concordance between the twins is much higher in monozygotic twins than in dizygotic ones. What is the percentage of blood group concordance in monozygotic twins?
100%
75%
50%
25%
Healthy parents have got a fairhaired, blue-eyed girl. Irritability, anxiety, sleep and feeding disturbance developed in the first months of the infant’s life. Neurological examination revealed developmental lag. What method of genetic investigation should be used for the exact diagnosis?
Genealogical
Cytological
Biochemical
Population-statistical
There are trisome, translocational and mosaic forms of Down’s syndrome. What method of human genetics can be applied to differentiate the said forms of Down’s syndrome?
Genealogical
Cytogenetical
Biochemical
Population-statistical
How do you achieve the high mitotic activity of lymphoid cells in the cytogenetic research?
by acting with a solution of colchicines
by acting with phytohemagglutinin
by acting with hypotonic solution
by acting with a solution containing ethyl alchohol
How do you achieve (during the cytogenetic method) the destruction of spindle division and stop cell division at the stage of metaphase?
by acting with a solution of colchicines
by acting with phytohemagglutinin
by acting with hypotonic solution
by acting with a solution containing ethyl alchohol
