Materi paling akhir biologi SMA yang aplikasi diharapkan bisa menambah semangat setidaknya mengerjakan soal bioteknologi atau untuk keinginan mau melanjutkan kemana setelah jagoan biologi OK
1. Which one is a true statement regarding DNA polymerase used in PCR?
1. Which one is a true statement regarding DNA polymerase used in PCR?
A It is isolated from a virus
B It remains active at high temperature
C It is used to ligate introduced DNA in recipient cells
D It serves as a selectable marker
ANSWER : B
2. Which one of the following is a case of wrong matching?
A Micropropagation-In vitro production of plants in large numbers
B Callus - Unorganized mass of cells produced in tissue culture
C Somatic hybridization - Fusion of two diverse cells
D Vector DNA - Site for t-RNA synthesis
ANSWER : D
3. Which part would be most suitable for raising virus-free plants for micropropagation?
A Meristem
B Node
C Bark
D Vascular tissue
ANSWER : A
4. For transformation, micro-particles coated with DNA to be bombarded with gene gun are made up of
A Silicon or Platinum
B GOLDor Tungsten
C Silver or Platinum
D Platinum or Zinc
ANSWER : B
5. The figure below is the diagrammatic representation of the E.coli vector pBR 322. Which one of the given options correctly identifies its certain component(s)?
A Hind III, EcoRI-selectable markers
B ampR, tetR-antibiotic resistance genes
C ori-original restriction enzyme
D rop-reduced osmotic pressure
ANSWER : B
6. The linking of antibiotic resistance gene with the plasmid vector became possible with:
A Endonucleases
B DNA ligase
C Exonucleases
D DNA polymerase
ANSWER : B
7. In plant biotechnology, PEG is used in
A Protoplast fusion
B Cell culture preparation
C Protoplast isolation
D Hardening
ANSWER : A
8. Polyethylene glycol method is used for
A Energy production from sewage
B Gene transfer without a vector
C Biodiesel production
D Seedless fruit production
ANSWER : B
9. Genetic engineering has been successfully used for producing
A Transgenic models for studying new treatments for certain cardiac diseases
B Transgenic mice for testing safety of polio vaccine before use in humans
C Animals like bulls for farm work as they have super power
D Transgenic Cow-Rosie which produces high fat milk for making ghee
ANSWER : B
10. Restriction endonucleases:
A Are synthesized by bacteria as part of their defense mechanism
B Are used for in vitro DNA synthesis
C Are used in genetic engineering for ligation of two DNA molecules
D Are present in mammalian cells for degradation of DNA when the cell dies
ANSWER : A
11. Which of the following enzymes are used to join bits of DNA?
A DNA polymerase
B Primase
C Ligase
D Endonuclease
ANSWER : C
12. Which one of the following bacteria has found extensive use in genetic engineering work in plants?
A Bacillus coagulans
B Xanthomonas citri
C Clostridium septicum
D Agrobacterium tumefaciens
ANSWER : D
13. Restriction endonuclease
A Restricts the synthesis of DNA inside the nucleus
B Cuts the DNA molecule at specific sites
C Cuts the DNA molecule randomly
D Synthesizes DNA
ANSWER : B
14. Plasmid has been used as vector because :
A Both ends show replication
B It can move between prokaryotic and eukaryotic cells
C It is circular DNA which have capacity to join to eukaryotic DNA
D It has antibiotic resistance gene
ANSWER : C
15. A genetically engineered micro-organism used successfully in bioremediation of oil spills is a species of
A Trichoderma
B Pseudomonas
C Bacillus
D Xanthomonas
ANSWER : B
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