krok 9
Quiz
•
English
•
University
•
Practice Problem
•
Easy
Якимчук (БДМУ-Чернівці)
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The mother’s karyotype has 45 chromosomes. It was determined that translocation of chromosome 21 to chromosome 14 had occurred. What disorder is likely to be observed in the child of this woman if the father’s karyotype is normal
Patau syndrome
Morris syndrome (androgen insensitivity)
Edwards syndrome
Down syndrome
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cells of a person working in the Chornobyl Exclusion Zone have undergone a mutation in DNA molecule. However, with time the damaged interval of DNA molecule restored ist initial structure with a specific enzyme. In this case the following occurred:
Repair
Reverse transcription
Replication
Transcription
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A man is a carrier of HIV that is an RNA virus. The cells of this patient synthesize viral DNA. This process is based on:
Reverse transcription
Translation
Repair
Replication
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The parents with normal hearing have two daughters and a son, who are congenitally deaf. Their other 5 children are healthy. What is the pattern of deafness inheritance in this case
Y-linked
X-linked dominant
Autosomal dominant
Autosomal recessive
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ingestion of plants and mushrooms that grow along highways is dangerous due to risk of lead poisoning. What is the main source of environmental pollution with this chemical element
Chemical fertilizers
Acid rains
Herbicides
Exhaust fumes
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Long-term taking of medicines can affect cells of the liver. Particularly, it can cause marked hypertrophy of agranular endoplasmic reticulum due to the following function of this organelle:
Protein synthesis
Nucleic acid synthesis
Detoxication of harmful substances
Intracellular digestion
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dwellers of a village located in the taiga make a living by harvesting berries. Lately the occurrence of alveococcosis in the village population has increased. What is the source of invasion in this case
Foxes
Birds
Fish
Rodents
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