1. It is a double-stranded , self replicating, circular DNA molecule present in bacteria which is widely used as a gene cloning vector. A. Cosmid B. Plasmid. C. Phagemid. D. Genome 2. In plant genetic engineering, which of the following acts as vector? A. Agrobacterium lumefaciens. B. Gene of interest C Receipt plant cell. D. Ti-plasmid 3. Which of the following illustrates breeding? A. A farmer choose a breed of cow for greater milk production B. The use of bacteria in order to produce human insulin. C. The insertion of cloned genes to plant cells. D. All of the above.
Bacterial Genomics
The study of the morphological, physiological, and evolutionary aspects of the bacterial genome is referred to as bacterial genomics. This subdisciplinary field aids in understanding how genes are assembled into genomes. Further, bacterial or microbial genomics has helped researchers in understanding the pathogenicity of bacteria and other microbes.
Transformation Experiment in Bacteria
In the discovery of genetic material, the experiment conducted by Frederick Griffith on Streptococcus pneumonia proved to be a stepping stone.
Plasmids and Vectors
The DNA molecule that exists in a circular shape and is smaller in size which is capable of its replication is called Plasmids. In other words, it is called extra-chromosomal plasmid DNA. Vectors are the molecule which is capable of carrying genetic material which can be transferred into another cell and further carry out replication and expression. Plasmids can act as vectors.
1. It is a double-stranded , self replicating, circular DNA molecule present in bacteria which is widely used as a gene cloning vector.
A. Cosmid
B. Plasmid.
C. Phagemid.
D. Genome
2. In plant genetic engineering, which of the following acts as vector?
A. Agrobacterium lumefaciens.
B. Gene of interest
C Receipt plant cell.
D. Ti-plasmid
3. Which of the following illustrates breeding?
A. A farmer choose a breed of cow for greater milk production
B. The use of bacteria in order to produce human insulin.
C. The insertion of cloned genes to plant cells.
D. All of the above.
4. Being pest resistance is one of the traits that are being introduced to plants like corn and eggplant with the insertion of Bt-toxin gene to plant cell. What method is use when a gene is inserted to plants?
A. Biolistic
B. Electroporation
C. Plasmid insertion by heat shock treatment
D. All of these
5. A biotechnologist wants to enhance the size of duhat fruit because research shows that it can lower blood sugar but is very expensive in the market. What could be the possible source of organism which contains the gene that is responsible for the development of large fruits.?
A. Lanka.
B. Chico.
C. Strawberry
D. Mango
6. Why genetic engineering. Is beneficial to the society?
A. It improves crops variety to meet the demand of increasing human populations.
B. Production of human protein using bacteria is a great leap in the field of medicine.
C. Transgenic plants and transgenic animals play a great role in our economic aspect.
D. All of the above
7. Why recombinant DNA is very useful in improving our health conditions?
A. Human insulin can be reproduced by bacteria?
B. Vaccine can be reproduced by fungi or bacteria
C. Human growth hormone can be obtained from E. Coli
D. All of the above
8. Which of the following is/are example of genetic engineering?
A. A farmer choose a breed of cow for greater milk production.
B. The use of bacteria in order to produce human insulin
C. The insertion of clone genes to plant cells
D. Cross pollination of squash flowers.
9. Bacterial cells as host organisms may expose the gene to make protein products such as insulin and growth hormone . Which of the following processes are involved?
A. replication and transcription.
B. Transcription and replication
C. Transcription and transformation.
D. Replication and transformation
10. Which of the following is an example of genetically modified plant?
A. Seedless. Grapes.
B. Guaple (large size guava)
C. Rice with beta-carotene
D. All of these
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