Chromosomes were revealed on karyotype examination of the 5-year-old girl. One of the
Th pair of chromosomes is longer than usual due to connected chromosome from the 21 pair.
What type of mutation does this girl have?
A Translocation
B Deletion
C Inversion
D Insufficiency
E Duplication
44
A pregnant woman had been having toxicosis with severe repeated vomiting for 24 hours. In the
End of the day there appeared tetanic convulsions and fluid loss. What shift of acid-base state
Caused these changes?
A Excretory alkalosis
B Gaseous alkalosis
C Gaseous acidosis
D Metabolic acidosis
E Excretory acidosis
45
Genetic structure of eukaryote is "exon-intron-exon". This structure-functional organization of
Gene caused transcription peculiarities. What will be pro-i-RNA according to the schema?
A Exon-intron-exon
B Exon-exon-intron
C Exon-exon
D Intron-exon
E Exon-intron
46
Medical examination at the military registration and enlistment office revealed that a 15-year-old
Boy was high, with eunuchoid body proportions, gynecomastia, female pattern of pubic hair
Distribution. The boy had also fat deposits on the thighs, no facial hair, high voice, subnormal
Intelligence quotient. Which karyotype corresponds with this disease?
A 47, XXY
B 45, XO
C 46, XX
D 46, XY
E 47, XXX
47
RNA that contains AIDS virus penetrated into a leukocyte and by means of reverse
Transcriptase forced a cell to synthetize a viral DNA. This process is based upon:
A Reverse transcription
B Operon repression
C Reverse translation
D Operon depression
E Convariant replication
48
According to the model of double DNA helix that was suggested by Watson and Creek, it was
Established that one of chains would not be lost during replication and the second chain would
Be synthesized complementary to the first one. What way of replication is it?
A Semiconservative
B Analogous
C Identical
D Dispersed
E Conservative
49
A teenager was irradiated with high radiation dose that resulted in serious damages of lymphoid
System, lysis of many lymphocytes. Restoration of normal hemogram is possible due to the
Functioning of the following gland:
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A Thymus
B Thyroid
C Liver
D Pancreas
E Adrenal
50
It was revealed that T-lymphocytes were affected by HIV. Virus enzyme - reverse transcriptase
RNA-dependent DNA polymerase) - catalyzes the synthesis of:
A DNA on the matrix of virus mRNA
B Virus informational RNA on the matrix of DNA
C DNA on virus ribosomal RNA
D Viral DNA on DNA matrix
E mRNA on the matrix of virus protein
51
A patient after pathological process has a thickened alveolar membrane. The direct
consequence of the process will be the reduction of:
A Diffuse lung capacity
B Oxygen capacity of blood
C Minute respiratory capacity
D Alveolar lung ventilation
E Reserve expiratiory capacity
52
Autopsy of a newborn boy revealed polydactylia, microcephalia, cheiloschisis and uranoschisis
As well as hypertrophy of parenchimatous organs. These defects correspond with the
Description of Patau's syndrome. What is the most probable cause of this pathology?
A Trisomy of the 13th chromosome
B Trisomy of the 18th chromosome
C Trisomy of the 21st chromosome
D Nondisjunction of sex chromosomes
E Partial monosomy
53
An ovary specimen stained by hematoxylin-eosin presents a follicle, where cells of follicular
Epithelium are placed in 1-2 layers and have cubic form, there is a bright-red membrane around
The ovocyte. What follicle is it?
A Primary
B Primordial
C Secondary
D Mature
E Atretic
54
A patient has symptoms of inflammation of urogenital tracts. Examination of a vaginal smear
Revealed big monocellular, pear-shaped organisms with the pointed spike at the posterior end of
Body, big nucleus and undulating membrane. What protozoa were found in the smear?
A Trichomonas vaginalis
B Trichomonas hominis
C Trichomonas buccalis
D Trypanosoma gambiense
E Lamblia intestinalis
55
During regular examination of schoolchildren it was revealed that a 10 year old girl had
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Asymmetric oval eggs with a larva in the scrape from her perianal folds. What diagnosis should
Be made?
A Enterobiasis
B Ascariasis
C Amebiasis
D Trichocephalosis
E Ankylostomiasis
56
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