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KROK (Medicine) questions: Biology — page 4

183 questions in Biology. Open a question to see the answer options and a hint.

  1. A child has 3 copies of chromosome 18, which resulted in characteristic cranial elongation from front to back, maldevelopments of the musculoskeletal system, fused… KROK 1 2023 – Question 64
  2. What period of the malaria plasmodium life cycle coincides with the manifestation of clinical symptoms of malaria in a patient? KROK 1 2023 – Question 87
  3. A patient was hospitalized with the provisional diagnosis of diphyllobothriasis. What food products could have caused this disease? KROK 1 2023 – Question 120
  4. Some parasites in their life cycle may have a host that can accumulate the parasite at its invasive stage and facilitate its transmission to the final host. What type… KROK 1 2023 – Question 147
  5. The initiation of transcription process becomes possible when an enzyme DNA-dependent RNA polymerase attaches to a certain segment of DNA molecule. Name this DNA segment: KROK 1 2021 – Question 3
  6. A mutation has occurred in a cell in the first exon of the structural gene. The number of nucleotide pairs changed from 290 to 250. Name this type of mutation: KROK 1 2021 – Question 20
  7. A man complains of itching skin between the fingers of his right hand. He was diagnosed with scabies. Name the preventive measures against this disease: KROK 1 2021 – Question 24
  8. After examination, a man who lived in the Ural region, was diagnosed with taiga encephalitis. The causative agent of this disease could have been transmitted to the… KROK 1 2021 – Question 37
  9. After a thorough examination, a man, who has returned to Ukraine from the Central Asia, was provisionally diagnosed with spring-summer encephalitis. In such cases, the… KROK 1 2021 – Question 82
  10. What type of disease inheritance results in men being affected by hemophilia, while women are the carriers of this disease? KROK 1 2021 – Question 125
  11. The synthesis rates of DNA, RNA, and necessary proteins are decreased in the cells of a human body and mitotic activity is insignificant. These changes most likely… KROK 1 2021 – Question 138
  12. While studying maximally spiralized chromosomes of human karyotype the process of cell division was stopped in the following phase: KROK 1 2008 – Question 65
  13. Examination of a newborn boy’s genitalia revealed an urethral hiatus that opens on the underside of his penis. What malformation is it? KROK 1 2008 – Question 69
  14. A patient has acne on his face. Microscopic examination of scrapings from the affected areas revealed living porrect vermiform arthropoda 0,2-0,5 mm large with four… KROK 1 2008 – Question 99
  15. A boy found a spider with the following morphological characteristics: it is 2 cm long, has roundish black abdomen with two rows of red spots on its dorsal side; four… KROK 1 2008 – Question 106
  16. Life cycle of a cell includes the process of DNA autoreduplication. As a result of it monochromatid chromosomes turn into bichromatid ones. What period of cell cycle… KROK 1 2008 – Question 124
  17. Examination of a 12 year old boy with developmental lag revealed achondroplasia: disproportional constitution with evident shortening of upper and lower limbs as a… KROK 1 2008 – Question 127
  18. A gynaecologist was examining a patient and revealed symptoms of genital tract inflammation. A smear from vagina contains pyriform protozoa with a spine, flagella at… KROK 1 2008 – Question 155
  19. A boy has I (I⁰I⁰) blood group and his sister has IV (IᴬIᴮ) blood group. What blood groups do their parents have? KROK 1 2008 – Question 156
  20. For the purpose of myocardium infarction treatment a patient was injected with embryonal stem cells derived from this very patient by means of therapeutic cloning. What… KROK 1 2008 – Question 158
  21. Hartnup disease is caused by point mutation of only one gene which results in disturbance of tryptophane absorption in the bowels and its resorption in the renal… KROK 1 2008 – Question 184
  22. As a result of prophylactic medical examination a 7 year old boy was diagnosed with Lesch-Nyhan syndrome (only boys fall ill with it). The boy’s parents are healthy but… KROK 1 2008 – Question 191
  23. According to the data of WHO, for about 250 mln of Earth population fall ill with malaria. This disease is mostly spread in tropical and subtropical regions. Range of… KROK 1 2007 – Question 12
  24. In some regions of South Africa there is a spread sickle-shaped cell anemia, in which erythrocytes have shape of a sickle as a result of substitution of glutamic acid… KROK 1 2007 – Question 15
  25. A 32 y.o. man is tall, he has gynecomastia, adult woman pattern of hair distribution, high voice, mental deficiency, sterility. Provisional diagnosis is Klinefelter’s… KROK 1 2007 – Question 70
  26. Autopsy of a newborn boy revealed polydactylia, microcephalia, cheiloschisis and uranoschisis as well as hypertrophy of parenchimatous organs. These defects correspond… KROK 1 2007 – Question 80
  27. 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… KROK 1 2007 – Question 95
  28. Examination of a newborn boy’s genitals revealed a cleft of urethra that opens on the inferior surface of his penis. What developmental anomaly is it? KROK 1 2007 – Question 120
  29. A young man consulted a doctor about disturbed urination. Examination of his external genitals revealed that urethra is split on top and urine runs out of this opening… KROK 1 2007 – Question 130
  30. A patient complains of pain in the area of his liver. Duodenal intubation revealed yellowish, oval, narrowed at the poles eggs with an operculum at the end. Size of… KROK 1 2007 – Question 131
  31. A child complains of general weakness, loss of appetite, a troubled sleep, itching in the perianal area. The provisional diagnosis is enterobiasis. In order to specify… KROK 1 2007 – Question 137
  32. Two days after consumption of smoked pork a patient got face and eyelid edemata, gastrointestinal disturbances, abrupt temperature rise, muscle pain. Blood analysis… KROK 1 2007 – Question 166
  33. A lymph node punctate of a patient with suspected protozoal disease was examined. Examination of the stained specimen (Romanovsky’s stain) revealed some crescent bodies… KROK 1 2007 – Question 174

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