“Biotechnologies and genetic engineering”

1.Genetic information is coded into DNA molecules as: A: genes B: codons C: triplets D: singlet codes

2. The flow of information according to the ‘ central dogma of molecular biology ‘ is: A: DNA → DNA → RNA B: DNA → RNA → DNA C: DNA → RNA → protein D: RNA → DNA → protein

3. Plasmids are: A: cytoplasm of a bacterial cell B: circular DNA in a bacterial cell, placed outside the bacterial chromosome C: the centromere of a chromosome D: a part of the mesosome of a bacterial cell

4. Genetic engineering focuses on: A: constructing molecular-genetic systems outside the organism B: constructing techniques to satisfy the needs of the genetic technologies C: somatic hybridization that creates hybrids D: combining different animal or plant species

5. Which proteins perform enzyme activity for DNA degradation? A: DNA polymerase B: amylase C: trypsin D: restrictase

6. Antibiotic resistance genes: A: prevent plants from bacterial attacks B: prevent people from bacterial attacks C: prevent people from antibiotics D: prevent bacteria from antibiotics

7. Our genes determine (regardless of the influence of the environment): A: whether we are prone to suffering from hemophilia B: whether we are prone to suffering from diabetes C: whether we are predisposed to obesity D: whether we will grow to be intelligent

8. The enzyme catalysing synthesis of DNA from RNA is known as: A: ligase B: DNA polymerase C: reverse transcriptase D: restrictase

9. Inserting a human gene in a plasmid results in: A: synthesis of human proteins in bacteria B: development of bacteria without antibiotic resistance C: identifying genetic diseases in people D: cloning of DNA molecules from a crime scene

10. Plasmids are found in: A: bacteriophages B: viruses C: nuclei of human cells D: bacteria

11. Antibiotics are substances that kill bacteria or inhibit their growth. Which of the listed below is not an antibiotic? A: Ampicillin B: Tetracycline C: Pepsin D: Penicillin

12. A couple with AB and A0 blood groups can not have a child with: A: blood group O B: blood group B C: blood group A D: blood group AB